New magnetic field generator for investigation of novel progressive materials

Team of scientists led by RNDr. Michal Rajňák, PhD. from the Institute of Experimental Physics SAS in Košice and assoc. prof. Ing. Bystrík Dolník, PhD. from the Technical University in Košice came up with a new type of structurally simple, reliable and energy-efficient device for measurements of the magneto-dielectric properties of various progressive materials in shape of thin films.

When testing the dielectric response of fluids and materials in external magnetic fields, developers often struggle with several limitations. “Current methods to measure these properties require a powerful power supply and robust solutions. This is related to the high energies required to generate the magnetic field by the existing methods and the limited possibilities of changing the intensity of the magnetic field when using permanent magnets. It is not advantageous to use such solutions for testing thin non-conductive liquid or solid films,” explained Michal Rajňák from IEP SAS.

This new magnetic field generatormade by Košice researchers is characterized by a compact shape, thanks to which it will be able to work even in specialized laboratories, special atmospheres or at very low temperatures up to 4 Kelvin (-269.15 °C).

“Our equipment requires a significantly smaller volume of test fluid or material, and the generated magnetic field is homogeneous. As a result, it achieves excellent parameters at the measuring point. In addition, the device can change the intensity and properties of the magnetic field. It can also generate a magnetic field with ultra-low or low frequency, thanks to which it can also be adapted in the research of biological materials,” adds Bystrík Dolník from FEEI TUKE.

 

Original source HERE.