Institute of Experimental Physics
Topic
New superconductors based on high-entropy alloys
PhD. program
Condensed matter physics
Name of the supervisor
RNDr. Gabriel Pristáš, PhD.
Contact:
Receiving school
Faculty of Science, P.J. Safarik University
Annotation
High-entropy alloys (HEAs) represent a relatively new class of materials, which has recently been the subject of considerable interest in both basic and applied research. These alloys consist of several constituent elements (4 - 6), while individual elements occupy lattice positions with a high degree of disorder, i.e. with high configurational entropy. Superconductivity of HEAs, with transition temperature Tc up to approx. 10 K and a critical magnetic field up to approx. 20 T, is very stable and resistant to various chemical and mechanical influences.
The topic of the proposed dissertation will be the preparation and research of the properties of new superconductors based on HEAs. These will include HEAs, which will incorporate light elements, e.g. nitrogen, carbon or hydrogen, which will lead to changes in their superconducting properties. In addition, the influence of pressure and thickness of HEAs thin films on their superconducting parameters will also be investigated. Under the guidance of the supervisor, the student will participate in the preparation and characterization of samples, experimental research, data analysis and presentation of the achieved results.
The topic of the proposed dissertation will be the preparation and research of the properties of new superconductors based on HEAs. These will include HEAs, which will incorporate light elements, e.g. nitrogen, carbon or hydrogen, which will lead to changes in their superconducting properties. In addition, the influence of pressure and thickness of HEAs thin films on their superconducting parameters will also be investigated. Under the guidance of the supervisor, the student will participate in the preparation and characterization of samples, experimental research, data analysis and presentation of the achieved results.