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| SUPERQUMAP – Supravodivé nanozariadenia a kvantové materiály pre koherentnú manipuláciu | |
| SUPERCONDUCTING NANODEVICES AND QUANTUM MATERIALS FOR COHERENT MANIPULATION | |
| Program: | COST |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | We propose a collaborative approach joiningtogether efforts and groups all over Europe, structured around three pathways, (i) the synthesis andcharacterization of quantum materials with novel topological properties, (ii) the fabrication of sensors anddevices exploiting novel superconducting functionalities and (iii) the generation and coherent manipulation ofsuperconducting states that can create new opportunities in the superconducting quantum electronics. Usingan open and inclusive approach that joins expertise and capabilities all over Europe, this project will structurecollaborative efforts aiming at disruptive achievements in the field of superconductivity. The results willimpact far beyond the development of new quantum solutions for computation, and include sectors such ashealth and energy. |
| Duration: | 6.10.2022 – 5.10.2026 |
| Výskum korelovaných a topologických fáz vo van der Waalsovských materiáloch | |
| Exploring correlated and topological phases in layered van der Waals quantum materials | |
| Program: | Mobility |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Annotation: | The project aims to explore novel quantum physics in heterostructures made of 2D materials focusing on emergent quantum phenomena induced by the spin-orbit coupling and its interplay with magnetism, topology, and superconductivity. We propose a study of van der Waals (vdW) heterostructures made of few-layer thin superconductors and ferromagnet and topological materials in order to study proximity effects on topologically induced superconductivity. The objective of the research is to build technological knowhow of sample preparation made of 2D materials, performing scanning tunneling microscopy and transport experiments which will be complemented by the state-of-the-art density functional theory calculations and tight-binding modeling of electronic structure to study quasiparticle interferences and transport properties. |
| Duration: | 1.1.2023 – 31.12.2024 |
| 2DSOTECH – Dvojrozmerná van der Waalsovská spinovo-orbitálna torzná technológia | |
| 2Dimensional van der Waals Spin-Orbit Torque Technology | |
| Program: | ERANET |
| Project leader: | RNDr. Gmitra Martin, PhD. |
| Annotation: | Engineering two-dimensional (2D) material van der Waals heterostructures by combining the best of different functional constituents can offer a plethora of opportunities in nanoelectronics. Here, we propose to develop all-2D spintronics platforms for the next generation of information technology based on 2D magnetic and topological spin-orbit materials. These hybrid systems can provide a strong synergy between spintronics and 2D materials, with the goal of combining “the best of both worlds”. Such integration of spin-orbit physics and magnetism in 2D heterostructures will enable groundbreaking functionalities in all-2D spin-orbit torque (SOT) technologies for low-power and non-volatile memory and logic devices.We will exploit low crystal symmetry of layered spin-orbit materials (SOM), hosting novel spin textures for the realization of efficient charge-to-spin conversion (CSC) with a significant out-of-plane spin-orbit field contribution for SOT technologies. We will start with basic investigation of CSC by using potentiometric methods in non-local spin valve geometry with graphene heterostructures. These studies will provide information about the main driving mechanisms of the CSC phenomena, such as the spin Hall, Rashba-Edelstein, or other spin-momentum locking effects to generate a giant and tunable spin polarization. Magnetic 2D crystals, on the other hand, exhibit a wide range of magnetic ordering and, extraordinarily, have the potential to be controlled by purely electronic means. Here, we will investigate 2D magnets for SOT technologies exploiting their low-dimensionality, perpendicular magnetic anisotropy, and the possibility of electric field control. We will examine the dynamics of magnetic excitations, their anisotropies, and controllability by gates, the critical parameters influencing the magnetic switching speed.This project will integrate 2D magnets and SOMs with engineered interfaces to establish exceptionally efficient SOT switching functionalities in all-2D materials platforms. We aim to study the fundamentals of magnetization dynamics and SOT switching behavior of hybrid structures using electronic, magnetotransport, time and spatially resolved magneto-optics, ferromagnetic resonance and 2nd harmonic measurements. The potential of the novel functionalities in these heterostructures will arise from the interplay of exotic spin textures, magnetic phases, proximity-induced exchange and spin-orbit effects at the interfaces of the 2D materials. These effects will be further controlled by interface engineering with a graphene interlayer, twist angle between the layers, and with external parameters such as electric field and pressure. These functionalities will be complemented with voltage-controlled magnetization switching in ultrathin devices. Finally, we will utilize these engineered hybrid devices to demonstrate ultra-fast and low-power magnetization switching of 2D magnets, for a future generation of all-2D SOT technologies. |
| Duration: | 1.12.2021 – 29.11.2024 |
| EMP – Europská Mikrokelvinová Platforma | |
| European Microkelvin Platform | |
| Program: | Horizon 2020 |
| Project leader: | RNDr. Skyba Peter, DrSc. |
| Project webpage: | https://emplatform.eu/ |
| Duration: | 1.1.2019 – 31.12.2023 |
| Mikrokontaktová a tunelová spektroskopia topologických izolátorov SnTe a Ge polovodičov | |
| Point-contact and tunnel spectroscopy of the topological insulator SnTe and Ge semiconductor | |
| Program: | Inter-academic agreement |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Annotation: | Quantum materials with a nontrivial topology of the electronic band structure are in recent years in the forefront of intensive theoretical and experimental studies. This is due not only to their unusual physical properties, but also due to possible applications in the new generation of electronics, in particular in quantum computers and spintronic elements. The key characteristic of these materials is the specific topology of the electronic structure, which defines non-trivial properties of their normal and superconducting state. At present, the efforts of the scientific community are focused on the ability to detect the peculiarities of surface states of these materials in transport measurements.It is believed that nonconventional superconductivity in topological materials (insulators) is realized in surface states. Under the influence of these investigations, a search was initiated and a surface superconducting state was detected in doped elemental semiconductors, which are widespread and technologically attractive. Thus, superconductivity was detected in a semiconductor Si, which has a high critical temperature of up to 10 K, which gives new perspectives in further research and new applications of classical semiconductors.For an efficient search for new compounds with predicted parameters, an understanding of the superconductivity mechanism that is implemented in these compounds is required. It is clear that this requires a thorough study of the characteristic physical properties of topological materials, using various experimental methods, among which tunneling and point-contact spectroscopy occupy one of the key places. Thus, in the joint project it is planned to study comprehensively the physical properties of the proposed objects – semiconductor Ge and the topological isolator SnTe to clarify the nature of their superconducting state. It is planned to conduct surface-sensitive point-contact measurements, where the features of surface states will affect the transport of charge carriers. Properties of surface states make topological materials particularly promising for quantum electronic applications. To find out the nature of the superconducting state, it is necessary to establish a pairing mechanism, which is usually associated with the interaction of two electrons, for example, due to such quasiparticles as phonons in ordinary superconductors. Thus, obtaining information on electron-quasiparticle interaction in the formation of superconducting pairs is very important for understanding the nature of superconductivity. From this point of view, the point-contact spectroscopy is a direct experimental method for obtaining the spectral function of the electron-boson (quasiparticle) interaction, which is responsible for the formation of superconducting pairs.Similar experiments were carried out by Ukrainian and Slovak teams for many types of superconductors. Therefore, taking into account this considerable experience in the project, it is planned to investigate the surface superconducting state in some promising representatives of semiconductors and topological insulators. |
| Duration: | 1.4.2020 – 31.12.2022 |
| STM štúdium grafénom pokrytých nanoštruktúr | |
| Investigation of graphene covered superconducting nanostructures by scanning tunneling microscopy | |
| Program: | Inter-academic agreement |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Annotation: | The proposed project represents a continuation of our previous collaboration, which we started in the framework of our common APVV SK-Hu-2013-0039 project „Elaboration and characterization of graphene layers with controlled nanoscale rippling” in 2015. In this project, we have studied the physical properties of tin/graphene hybrid nanostructures applying low temperature STM microscopy and spectroscopy. We have shown, that the graphene cover layer acts as a passivating layer and protects the tin nanoparticles from oxidation. Our low temperature STM results prove that superconductivity is induced in grapheme both, when directly directly supported by tin nanoparticles or suspended among them. These results have been published in our common paper in a prestigious journal Carbon [A. Pálinkás, et al., Carbon 124 (2017) 611-617]. |
| Duration: | 1.1.2019 – 31.12.2022 |
| Nanocohybri – NANOSCALE COHERENT HYBRID DEVICES FOR SUPERCONDUCTING QUANTUM TECHNOLOGIES | |
| NANOSCALE COHERENT HYBRID DEVICES FOR SUPERCONDUCTING QUANTUM TECHNOLOGIES | |
| Program: | COST |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Superconducting technologies are prime candidates to ripen quantum effects into devices and applications. The accumulated knowledge in decades of work in understanding superconductivity allows scientists now to make experiments by design, controlling relevant parameters in devices. A new field is emerging whose final objective is to improve appliances taking advantage of quantum effects, be it for dissipationless transport of current, generation of high magnetic fields, sensors or quantum information. The field will impact crucial areas for societal development, including energy, transport, medicine or computation. Quantum behavior is controlled by using hybrids of superconductors with magnets, insulators, semiconductors or normal metals. Traditionally, the scientific and technical communities working in superconductivity are spread across projects from different calls, whose activities put Europe at the frontier of research. The present Action aims to address the pressing need for a common place to share knowledge and infrastructure and develop new cooperative projects.To this end, we have set-up a program including networking activities with an open, proactive and inclusive approach to other researchers and industry. We will develop the concept of a Virtual Institute to improve availability of infrastructure and knowledge, and focus on contributing to gender balance and the participation of young researchers. The proposal aims to avoid duplication of resources and skills in a subject traditionally dominated by small groups working independently. This will optimize European efforts in this area and uncover our full potential, thus maintaining and developing Europe’s leading position in superconducting quantum technologies. |
| Duration: | 18.10.2017 – 17.4.2022 |
| Mikrokontaktová spektroskopia supravodičov na báze železa | |
| Point-contact and tunneling spectroscopy of emergent iron-based superconductors | |
| Program: | Inter-academic agreement |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Point-contact and low temperature scanning tunneling spectroscopy of the most prospective iron pnictide and chalcogenide superconductors is planned to obtain information about the typical boson excitations and anisotropy of the superconducting gap, multi-zone and interface effects to identify characteristics features of superconducting state in these compounds and a deeper understanding their nature. |
| Duration: | 1.1.2017 – 31.12.2019 |
| Spektroskopické, transportné a termodynamické vlastnosti silno korelovaných elektrónových systémov s konkurenčnými parametrami usporiadania | |
| Spectroscopic, transport and thermodynamic properties of strongly-correlated electronic systems with competing orders | |
| Program: | Inter-academic agreement |
| Project leader: | RNDr. Vargaeštoková Zuzana, PhD. |
| Duration: | 1.1.2015 – 31.12.2017 |
| Grafénové vlny – Príprava a charakterizácia grafénu s kontrolovateľnou korugáciou povrchu | |
| Elaboration and characterization of graphene layers with controlled nanoscale rippling | |
| Program: | Inter-governmental agreement |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Annotation: | The development of novel functional nanodevices based on graphene is of great interest formany technological applications. Transferring the bunch of exceptional properties of this highlypromising two dimensional carbon material (light, strong, flexible, semi-metal, etc.) is currentlyone of the hot topics in material science.The objective of this project is the realisation of functional graphene materials by controlling theirrippling at nanoscale. A comparative study will be performed to investigate the microscopicstructure and local electronic properties of graphene layers transferred onto nanostructuredsurfaces. These surfaces will be prepared by dispersing and depositing different nanoparticleson appropriate substrates.A more comprehensive study of graphene-on-nanoparticle heterostructure is envisaged byScanning Tunneling Microscopy and Spectroscopy (STM/STS), in order to investigate not onlygeometric effects but also electronic effects like spatially dependent doping, or superconductingproximity. Focus lies on measuring the induced superconductivity in graphene when istransferred onto superconducting nanoparticles (e.g. tin, indium).The project thus will contribute to enhance the knowledge on the properties of strainedgraphene/nanoparticle hybrid systems. |
| Duration: | 1.1.2015 – 31.12.2016 |
| NanoSC –COST – Supravodivosť na nanoškále: Nové funkcionality prostredníctvom optimalizovaného ohraničenia kondenzátu a polí | |
| Nanoscale Superconductivity: Novel Functionalities through Optimized Confinement of Condensate and Fields | |
| Program: | COST |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Project webpage: | http://www.kuleuven.be/inpac/cost/ |
| Duration: | 19.10.2012 – 18.10.2016 |
| CONICET – Spektroskopické vlastnosti silno korelovaných elektrónových systémov s konkurenčnými usporiadaniami | |
| Spectroscopic properties of strongly correlated systems with competing order | |
| Program: | Inter-academic agreement |
| Project leader: | RNDr. Vargaeštoková Zuzana, PhD. |
| Duration: | 1.1.2013 – 31.12.2014 |
| Microkelvin – Európska mikrokelvinová spolupráca | |
| European Microkelvin Collaboration | |
| Program: | FP7 |
| Project leader: | RNDr. Skyba Peter, DrSc. |
| Project webpage: | www.microkelvin.eu |
| Duration: | 1.4.2009 – 31.3.2013 |
| ESO – Inžiniering supravodivosti | |
| Inžiniering supravodivosti | |
| Program: | ERANET |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | The project concerns optimization of critical parameters as the critical current density, important for practical applications, in superconducting materials using the nanosized pinning centers. Important ingredient in our studies will be the use of nanoscale probes as the low temperature STM. AFM, electron and optical lithography will be used to prepare the nanostructured superconductors and hybrid superconductor (S) / normal metal (N) and S / magnetic (M) nanosystems as the constituents of the superconducting nanoelectronics devices, including superconducting flux qubits. |
| Project webpage: | http://ofnt.saske.sk |
| Duration: | 1.1.2010 – 31.12.2012 |
| NES – Nanoveda a technika v supravodivosti | |
| Nanoscience and Engineering in Superconductivity | |
| Program: | European Science Foundation (ESF) |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Confined condensate and flux in superconductors will be investigated at nanoscale by using various confinement patterns introduced artificially in the form of individual nanoplaquettes, their clusters and huge arrays. The dependence of the quantization effects on the confinement length scale and the geometry will be studied. The boundary conditions, defining the confinement potential, will be tuned by using the hybrid superconductor/normal and superconductor/magnet interfaces in superconducting nanosystems. The evolution of superconductivity at nanoscale will be revealed by determining the size dependence of the superconducting critical temperature and the gap in mass selected clusters and nanog rains and also by studying superfluidity in different restricted geometries. Flux confinement by magnetic dipoles and other periodic pinning arrays in sup erconductors will be investigated. By tailoring the confinement, physical properties of the confined condensates and flux can be designed starting from the fund amental Ginzburg-Landau equations (including their generalization to two component order parameter) and applying them to the real samples with the boundary conditi ons imposed at the physical sample’s boundary. This research will reveal the fundamental relations between quantized confined states and the physical propert ies of the superconducting quantum coherent systems, which will be also of importance for other scientific fields (superconducting elements for quantum computing, nanoelectronics, hydrodynamics, liquid crystals, plasmas).The ESF – NES Programme and similar programmes in Japan and USA form together Global Research Networking, Nanoscience and Engineering in Superconductivity. |
| Project webpage: | http://www.kuleuven.be/inpac/nes/index.html |
| Duration: | 1.1.2007 – 31.12.2012 |
| REBCO studies – Štúdium prípravy RE-Ba-Cu-O monokryštálov. Vzťahy medzi magnetizmom a supravodivosťou. | |
| Study on single crystal growth in RE-Ba-Cu-O system. Interplay between magnetism and superconductivity. | |
| Program: | Bilateral – other |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Annotation: | Study of fundamental superconducting properties of RBCO superconductors. Experimental study of the anisotropy and electron pairing symmetry in these systems. |
| Duration: | 1.1.2008 – 31.12.2009 |
| ExtreM – Výskum kondenzovaných látok pri extrémnych experimentálnych podmienkach | |
| Condensed matter research at extreme experimental conditions | |
| Program: | FP6 |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | ExtreM is aimed to promote and strengthen the scientific and technological excellence of the Centre of Low Temperature Physics in Košice, Eastern Slovakia, the less favoured region of EU in the field of low temperature physics studying new materials with macroscopic quantum phenomena. The co-ordination and integration of research topics and infrastructure with leading European laboratories will adapt our position to the fast developing European Research Area and contribute to the increase of competitiveness of Europe. The project objectives consist of particular instrumental and methodological issues, which are mutually interconnected. The central issue will be the build up of a flexible customer-designed dilution refrigerator with the implementation of other experimental techniques. Implementation of the proposed complementary techniques to a single set-up brings unique instrumentation which cannot be found elsewhere, thus improving not only the hosting institution but also contributing to the strengthening of the European Research Area. |
| Project webpage: | http://home.saske.sk/~extrem/ |
| Duration: | 1.3.2006 – 28.2.2009 |
| Strednotplotné supravodiče MgB2 a (Ba,K)BiO3 vo vysokých magnetických poliach | |
| Medium Tc superconductors MgB2 and (Ba,K)BiO3 in high magnetic fields | |
| Program: | Inter-governmental agreement |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | no description |
| Duration: | 1.1.2004 – 31.12.2006 |
| Supravodiče v silných magnetických poliach | |
| Superconductors in high magnetic fields | |
| Program: | Inter-academic agreement |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | no description |
| Duration: | 1.1.2005 – 31.12.2006 |
| VORTEX – Víry v supravodičoch v extrémnych škálach a podmienkach | |
| VORTEX MATTER IN SUPERCONDUCTORS AT EXTREME SCALE AND CONDITIONS | |
| Program: | European Science Foundation (ESF) |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Duration: | 1.1.1999 – 31.12.2004 |
National
| LSD – Nízkorozmerné supravodivé aparáty | |
| Low-dimensional Superconducting Devices | |
| Program: | SRDA |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Annotation: | Ultralow temperatures have become an important tool for new research avenues in nanoscience, materials research and particularly in quantum nanotechnologies. Scaling down a physical system towards the sizes when the quantum properties surpass classical physics opens a plethora of new quantum-driven effects, thus giving rise to new classes of quantum materials. Within the proposed project we will focus our study on low-dimensional quantum devices, heterostrucures consisting of atomically thin superconducting slabs and aditional layers with different order (inslulator, metal, ferromagnet). In such systems symmetries can be broken possibly allowing for non trivial topological quantum states relevant for future technologies. Atomically thin layered materials are systems with zero limit bulk-to-surface ratio. Their physical properties are strongly affected by interfacing with other systems. Therefore, they represent an accessible platform for the abundance of quantum effects that can be engineered by combining them into vertical stacks using exfoliation techniques. One identifies two types of layered systems – atomically thin artificially prepared van der Waals heterostructures [Science 353, aac9439 (2016)], and naturally layered three-dimensional crystal systems. A special class of naturally layered materials is misfit structures combining alternating atomic layers of hexagonal transition metal dichalcogenides and slabs of ionic rare-earth monochalcogenides in the same superlattice [APL Mater 10, 100901 (2022)]. They feature new state of quantum matter, the Ising superconductivity resulting from broken inversion symmetry and strong spin-orbit coupling as has been recently shown by us. The misfits are also exfoliative and thus incorporable as units in vertical stacks. |
| Duration: | 1.9.2024 – 31.12.2027 |
| Topologicky netriviálne magnetické a supravodivé nanoštruktúry | |
| – | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Duration: | 1.7.2021 – 30.6.2025 |
| Štúdium netriviálnej supravodivosti vybraných materiálov. | |
| Research of non-trivial superconductivity on selected materials. | |
| Program: | VEGA |
| Project leader: | RNDr. Kačmarčík Jozef, PhD. |
| Duration: | 1.1.2020 – 31.12.2023 |
| ECODISC – Elektrónové korelácie v neusporiadaných supravodičoch | |
| Electron correlations in disordered superconductors | |
| Program: | SRDA |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Annotation: | Project aims at understanding of the effect of disorder on superconductivity in systems which are close to Superconductor-Insulator Transition as well as in thin films of hydrides. The thin films of MoN, MoC, TiN of various thickness and stoichiometry and on different substrates as well as polycrystalline and nanostructured boron-doped diamond will be prepared. Some of these systems reveal fermionic and some bosonic effects insuperconducting state. By means of conductance measurements from DC to optical frequency range as well as by means of the scanning tunneling microscopy and spectroscopy at very low temperatures and in high magnetic field we will address the question of what kind of superconductivity is established in strongly disorderd systems where already quasiparticles out of superconducting state reveal renormalized density of states around the Fermi energy. We want also to understand the appearence of superconductivity in thin films of hydrides. We will explore the effect of disorder changing upon hydrogen content, thickness of film, substrate, microstructure and applied pressure on superconductivity in YHx, TiHx, VHx hydrides and their oxyhydrides. |
| Duration: | 1.7.2019 – 30.6.2023 |
| Isingove supravodiče a topologické fázy hmoty | |
| Ising superconductors and topologigal phases of the matter | |
| Program: | VEGA |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Duration: | 1.1.2019 – 31.12.2022 |
| QuTeMaD – Kvantové technológie. materiály a zariadenia | |
| Quantum Technologies, Materials and Devices | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Within the project we will focus on development of particular devices based on superconductors orsuperconducting circuits working up to quantum limit. One of the main goal of the project is a practical amplifierwhich bring real and considerable improvement over the high electron mobility transistor (HEMT) amplifiers. Ouraim is to go beyond the state-of-the-art and fabricate subquantum-limited parametric amplifier, a key element forquantum information processing with microwaves. In order to achieve this aim we will investigate novel quantummaterials which can improve properties of quantum devices. Therefore, the fundamental research of newtopological materials including topological insulators and superconductors will thus be a logical and integral partof our project. |
| Duration: | 1.7.2017 – 31.12.2020 |
| Komplementárne štúdium supravodivosti vybraných materiálov | |
| Complementary study of superconductivity of selected materials | |
| Program: | VEGA |
| Project leader: | RNDr. Kačmarčík Jozef, PhD. |
| Annotation: | Since the discovery of the two-gap superconductivity in MgB2 almost 15 years ago, a continuous search for other examples of this special feature is maintained. Another interesting issue of these days in condensed matter physics is investigation of materials with competing orders, where for example superconductivity coexists or compete with magnetic ordering or charge density waves. Within the project we will focus on study of several representatives of these groups – we will confirm or disconfirm presence of two energy gaps in LaRu4As12 and Bi2Pd, we will explore competing orders in CuxTiSe2 and CeCoIn5 and we will address spatially constrained superconductivity in granular doped diamond. Clarification of their superconducting mechanism could shed some light on other superconducting materials. We will also work on development of new experimental methods – implementation of a resistive calorimeter and mastering and further enhancement of local magnetometry using Scanning Hall-probe microscope. |
| Duration: | 1.1.2016 – 31.12.2019 |
| PSI – Prechod supravodič – izolant | |
| Superconductor – insulator transition | |
| Program: | SRDA |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Annotation: | The project aims at understanding the problem of how superconductor transforms to insulator at increaseddisorder. The questions of what is the force driving the superconducting transition temperature to lower values inultrathin superconducting films and what is the mechanism of the quantum phase transition betweensuperconducting and insulating states will be addressed experimentally as well as theoretically. Thesuperconducting films of various content with thicknesses down to few atomic layers as well as thenanostructures and resonators on their basis will be prepared. Transport, microwave and optical properties ofthese objects will be investigated. By means of the subkelvin scanning tunnelling microscope the spectral mapsof the quasiparticle density of states at ultralow temperatures and in high magnetic fields will be measured. Wewill explore possibilities to prepare sensitive photon detectors and amplifiers based on ultrathin disorderedsuperconducting films for the spectroscopy in physics, chemistry and biology.Dynamics of the surface states in another macroscopic quantum object, the superfluid 3He which is thetopological insulator at ultra low temperatures, will be investigated experimentally as well as theoretically. Theobjective is to elucidate the dynamics of surface bound excitations in superfluid 3He by means of mechanicalresonators and resolve if the excitations can be identified with the long searched Majorana fermions.By experiment the recent question if samarium hexaboride is a topological insulator will be addressed. |
| Duration: | 1.7.2015 – 30.6.2019 |
| Štúdium supravodivých nanoštruktúr a nanovrstiev | |
| Study of superconducting nanostructures and nanolayers | |
| Program: | VEGA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Duration: | 1.1.2015 – 31.12.2018 |
| Supravodiče s nekonvenčným párovaním | |
| Superconductors with non-conventional pairing | |
| Program: | VEGA |
| Project leader: | RNDr. Kačmarčík Jozef, PhD. |
| Annotation: | Since the discovery of high-Tc superconductors a vivid interest is focused on the non-conventional electron pairing mechanisms that could lead to high superconducting critical temperature. Within the proposed project we will study systems where superconductivity comes to play in positive or negative sense with other concurrent order – charge density wave, mainly in dichalcogenides of transition metals. After another surprising discovery – the superconductivity in MgB2 a renewed attention was focused on other non-conventional types of otherwise classical phonon mediated pairing. Within the project we will study other superconducting borides. Clarification of their superconducting mechanism could shed some light on other superconducting clathrates, where a metal ion is trapped in the cage of some other element. We will also work on development of new experimental methods – a compact cooling stage using adiabatic demagnetization and implementation of local magnetometry in 3He cryostat. |
| Duration: | 1.1.2013 – 31.12.2015 |
| CFNT MVEP – Centrum fyziky nízkych teplôt a materiálového výskumu v extrémnych podmienkach | |
| Centre of Low Temperature Physics And Material Research at Extreme Conditions | |
| Program: | Centrá excelentnosti SAV |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Centre of Low Temperature Physics and Material Research at Extreme Conditions Kosice, CLTP-MREC, represents a concept of cutting-edge experimental research institution focused on low temperature physics and material research under extreme conditions. By the extreme conditions apart from low temperatures meant are also high as well as extremely small magnetic fields, extremely high pressures and temperatures, and also reduced dimensions – preparation of nanomaterials and investigations of properties on a nanoscopic scale. Main goal of the project has been to mobilize a common research of constituting organisations and to target it to the area of materials and technologies with a high application potential and technological transfer. The world competitive physics and material science demands the up-to-date research infrastructure. CLTP-MREC has already now in disposal top level instruments and techniques obtained within the framework of the European structural funds, Framework Programmes and other grant schemes but as the most important added value the Centre deems its capability to develop own unique scientific methods, instruments and technologies. The Centre belongs to a dozen world laboratories able to perform experiments in microkelvin range but it disposes also other unique techniques for processing and characterization of materials in high magnetic fields, and at high pressures and temperatures. In this proposal we will concentrate on development of another top level instruments and technologies as well on a synergetic collaboration of our laboratories which represent an important base of the material R&D in Košice. |
| Project webpage: | http://ofnt.saske.sk |
| Duration: | 1.7.2011 – 30.6.2015 |
| Progresívne materiály s konkurenčnými parametrami usporiadania | |
| Progressive materials with competing order parameters. | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Phase transitions between different ground states of the material can be induced by altering the balance of competing interactions by changes in composition, pressure, or external applied magnetic field. Interplay between competing orders can lead to new materials with unexpected properties. For example it may stand behind the high temperature superconductivity. Within the project we will focus on fundamental studies in three classes of superconducting materials where the above mentioned competing orders can be put in a play: pnictides, superconductors based on doped semiconductors and dichalcogenides.The project represents a physical realization of the unique experimental basis of the Centre of Cryophysics and Cryonanoelectronics Košice-Bratislava built as a Centre of Excellence of the Slovak R&D agency during last years and supported by the Framework Programme and other projects. |
| Duration: | 1.7.2012 – 30.6.2015 |
| Extrem II – Extrem II – Dobudovanie Centra pokročilých fyzikálnych štúdii materiálov v extrémnych podmienkach | |
| Extrem II – Center of advanced physical studies for materials in extreme conditions | |
| Program: | EU Structural Funds Research & Development |
| Project leader: | RNDr. Skyba Peter, DrSc. |
| Duration: | 28.8.2010 – 31.1.2014 |
| EDUFYCE – Edukačné fyzikálne centrum ÚEF SAV | |
| – | |
| Program: | Štrukturálne fondy EÚ Vzdelávanie |
| Project leader: | RNDr. Zentková Mária, CSc. |
| Project webpage: | edufyce.saske.sk |
| Duration: | 1.9.2010 – 30.8.2013 |
| Magnetizmus a supravodivosť. Experimentálne štúdium v extrémnych podmienkach. | |
| Magnetism and superconductivity. Experimental study at extreme conditions. | |
| Program: | VEGA |
| Project leader: | RNDr. Kačmarčík Jozef, PhD. |
| Annotation: | At low temperatures, when thermal fluctuations are suppressed, condensed matter transforms to magnetically ordered or superconducting state. Magnetism and superconductivity are antagonist phenomena, yet there exist some examples of ferromagnetic superconductors. Indeed, interplay of superconductivity and magnetism stands among the most attractive up-to-date research topics. In the proposed project we intend to study selected magnetic and superconducting materials in extreme experimental conditions: very low temperatures, high magnetic fields, under high pressures and with space resolution down to atomic scale in order to clarify their fundamental physical properties.Partially we will focus on implementation and improvement of new experimental techniques and methods. Namely it is implementation of relaxation calorimetry at milikelvin temperatures, construction of high-pressure cell up to 100 kbar for measurements under pressure and implementation of local magnetization measurements using miniature Hall probes. |
| Duration: | 1.1.2010 – 31.12.2012 |
| MVTS NES – MVTS Nanoveda a inžiniering v supravodičoch | |
| MVTS Nanoscience and Engineering in Superconductivity | |
| Program: | Podpora MVTS z prostriedkov SAV |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Confined condensate and flux in superconductors will be investigated at nanoscale by using various confinement patterns introduced artificially in the form of individual nanoplaquettes, their clusters and huge arrays. The dependence of the quantization effects on the confinement length scale and the geometry will be studied. The boundary conditions, defining the confinement potential, will be tuned by using the hybrid superconductor/normal and superconductor/magnet interfaces in superconducting nanosystems. The evolution of superconductivity at nanoscale will be revealed by determining the size dependence of the superconducting critical temperature and the gap in mass selected clusters and nanograins and also by studying superfluidity in different restricted geometries. Flux confinement by magnetic dipoles and other periodic pinning arrays in superconductors will be investigated. By tailoring the confinement, physical properties of the confined condensates and flux can be designed starting from the fundamental Ginzburg-Landau equations (including their generalization to two component order parameter) and applying them to the real samples with the boundary conditions imposed at the physical sample’s boundary. This research will reveal the fundamental relations between quantized confined states and the physical properties of the superconducting quantum coherent systems, which will be also of importance for other scientific fields (superconducting elements for quantum computing, nanoelectronics, hydrodynamics, liquid crystals, plasmas). |
| Duration: | 1.5.2007 – 30.4.2012 |
| Exceptional – Výnimočné supravodiče | |
| Exceptional superconductors | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Duration: | 1.1.2010 – 31.12.2011 |
| Hodina vedy | |
| The hour of sciences | |
| Program: | SRDA |
| Project leader: | Mgr. Szabó Pavol, CSc. |
| Project webpage: | www.hodinavedy.sk |
| Duration: | 1.7.2008 – 31.7.2011 |
| CKK – Centrum kryofyziky a kryonanoelektroniky | |
| Centre of Cryophysics and Cryonanoelectronics | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Project webpage: | ofnt.saske.sk |
| Duration: | 1.7.2008 – 30.6.2011 |
| EXTREM I – Extrem – Centrum pokročilých fyzikálnych štúdií materiálov v extrémnych podmienkach | |
| Extrem – Center of advanced physical studies for materials in extreme conditions | |
| Program: | EU Structural Funds Research & Development |
| Project leader: | RNDr. Skyba Peter, DrSc. |
| Duration: | 19.5.2009 – 30.4.2011 |
| CFvNT – Centrum fyziky veľmi nízkych teplôt | |
| Centre of Very Low Temperature Physics | |
| Program: | Centrá excelentnosti SAV |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | The Centre is the common laboratory of the Institute of Experimental Physics of the SAS, Institute of Physical Science of the Faculty of Nature Sciences, University of P. J. Šafárik and the University of P. J. Šafárik. It ranks among the top ten low temperature laboratories in the world, which experimentally cover the microkelvin temperature area of physics. The centre obtained the governmental project Development of the cryogenic basis in Košice, which installed and activated the new helium liquefier. Apart from that, a new laboratory with the most modern equipment has been built. The Centre is working in the 6th EU ExtreM Framework; unique technologies and methodologies are developed such as scanning tunneling microscope (under 1 K), measurement of heat capacity of nanogram samples and thermometry in submilikelvin area are carried out. The Centre also develops the experimental basis, pursues the top physical research in the area of superconductivity, superfluid helium-3, quantum materials and strongly correlated electron systems. |
| Duration: | 1.1.2007 – 31.12.2010 |
| Superextrem – Supravodiče a silnokorelované systémy v extrémnych podmienkach | |
| Superconductors and Strongly Correlated Systems at Extreme Conditions | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Project webpage: | ofnt.saske.sk |
| Duration: | 1.6.2008 – 31.12.2010 |
| Štúdium silne korelovaných elektrónových systémov pri nízkych teplotách | |
| Study of strongly correlated electron systems at low temperatures | |
| Program: | VEGA |
| Project leader: | doc. RNDr. Flachbart Karol, DrSc., akademik US Slovenska |
| Annotation: | The project is focused to open problems in the field of strongly correlated electron systems. Attention is paid to the experimental study of selected superconductors, to the interplay between the RKKY-type exchange, dipole-dipole and crystalline electric field interactions in fcc-based magnetic materials, to the influence of doping on the ground state properties of the heavy fermion semiconductor SmB6, and to the semiconductor – metal transition of this material under high pressure and high magnetic field.Attention is paid also to the development and construction of new experimental facilities and new experimental methods. |
| Project webpage: | – |
| Duration: | 1.1.2007 – 31.12.2009 |
| Prospect – Perspektívne supravodiče | |
| Prospective superconductors | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Duration: | 1.10.2006 – 30.9.2009 |
| ExtreM – ExtreM – Extrémne experimentálne podmienky ako nevyhnutná požiadavka pre súčasný výskum tuhých látok | |
| ExtreM – Extreme experimental conditions as a necessary demand for the state of art condensed Matter research | |
| Program: | Podpora MVTS z prostriedkov SAV |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | ExtreM is aimed to promote and strengthen the scientific and technological excellence of the Centre of Low Temperature Physics (CLTP) in Košice in the field of low temperature physics studying new materials with macroscopic quantum phenomena. The co-ordination and integration of research topics and infrastructure with leading European laboratories will adapt our position to the fast developing European Research Area. The project objectives consist of particular instrumental and methodological issues, which are mutually interconnected. The central issue will be the build up of a flexible customer-designed dilution refrigerator with the implementation of other experimental techniques. Implementation of the proposed techniques to a single set-up brings unique experimental means which cannot be found elsewhere, thus improving not only the hosting institution but contributing to strengthening of the European Research Area. |
| Duration: | 1.3.2006 – 28.2.2009 |
| Supravodiče pre budúce technológie | |
| Superconductors for future technologies | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Explanation of the problems connected with a preparatin and fundamental physical properties of the two-gap/two-band superconductors based on MgB2 with a special attention to the effect of two gaps. Investigations of the effects of the chemical substitution, irradiation and the technology on the extrinsic as well as the intrinsic parameters of novel superconductors.Preparation of thin films and microstructures, preparation of the single particle tunnelling boxes for superconducting qubits. Physical characterisation of qubits at very low temperatures. First experimental realisation of the components of the quantum computers in Slovakia.Explanation of proecesses of decoherence in precessing states in the superfluid helium-3 amely in the homogeneously precessing and persistently precessing domains. Modelling of qubits. |
| Duration: | 1.1.2005 – 31.12.2007 |
| CFvNT – Centrum fyziky veľmi nízkych teplôt | |
| Centre of Very Low Temperature Physics | |
| Program: | Centrá excelentnosti SAV |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | The Department of the Low Temperature Physics IEP SAS together with the Institute of the Physical Sciences P.J. Šafárik University belong to the club of about 20 laboratories in the world capable to work in the physics at ultra low temperatures. The common lab has a strong collaboration with world leading laboratories. The physics of low and ultra low temperatures represents a revolutionary branch of science where novel concepts of the condensed matter are born. The problems in quantum materials and strongly correlated systems are addressed. The main focus is devoted to novel superconductors, superfluid helium-3 (the most complex condensed matter), modern magnetic materials, heavy fermions. The constituting laboratories have accomplished significant international achievements in this field. The Center will focus on fundamental studies and applications in the above mentioned materials with a particular accent on their nanostructural and low dimensional aspects. Establishment of the Center will allow for a coordination of the both constituting unique labs and open the Center operating experimental techniques from the microkelvin range up to the room temperatures to any external users from academic world and industry. The Center will continue in the technical development in his field and in consultancy. |
| Duration: | 1.11.2002 – 31.10.2006 |
| Nanoštruktúry v supravodičoch | |
| Nanostructures in superconductors | |
| Program: | SRDA |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Duration: | 2.8.2002 – 2.8.2005 |