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Seminars and workshops of department 23

Seminář / Tuesday, 11.12.2018 15:00

Abstract: The magnetic materials might be sub-divided into the three major classes that requires special approaches and has specific problems, but also allowing for specific simplifications. This classes are magnetic insulators, 4f-metals with high degree of the magnetic moment localizations and d-metals and intermetallic compounds and alloys. For the first classes an important role of the correlation effects are evident, but quantum Heisenberg model with some modifications provide robust description of the finite temperature magnetic properties. The class of the d-metallic...

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Seminář / Tuesday, 27.11.2018 15:00

Abstract: Apart from their potential for quantum computing, topological superconductors have instigated renewed interest in the intricate interplay between superconductivity and magnetic degrees of freedom. This question dates back to the 1950’ies, but the recent advances in material growth and custom made hybrid materials provide an exciting new perspective on this venerable problem. In this seminar, I will discuss a possible platform for frustrated magnetism utilizing a Cooper pair mediated long-ranged indirect exchange interaction in two-dimensional (2D) magnetic adatom...

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Seminář / Wednesday, 21.11.2018 15:00

Abstract: Alloys consisting of multiple principal elements in approximately equiatomic concentrations have been termed high (configurational) entropy alloys (HEAs). They represent a very interesting class of materials since certain combinations of elements in a single phase may exhibit a number of unusual physical properties with high potential for applications. The first part of the talk will provide a representative example of HEAs, the equiatomic CrMnFeCoNi alloy, which we studied using both experimental and theoretical tools. In particular, we found that the material...

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