ELFT HÍRADÓ

[Janos Asboth <asboth AT phy.bme.hu>]

Meghívó

BME Elméleti Fizika Szeminárium,

mércius 26. péntek 10h15,
online a Microsoft Teams-ben
<https://teams.microsoft.com/l/meetup-join/19%3a35c712c192104aa998ed6bab3f0cbc07%40thread.tacv2/1616593162015?context=%7b%22Tid%22%3a%226a3548ab-7570-4271-91a8-58da00697029%22%2c%22Oid%22%3a%22c7eaf7d2-684b-4597-b217-6a9121400219%22%7d>
Nyári Bendegúz (BME Elm. Fiz. tanszék, PhD hallgató):
First principles based theory of magnetic impurities embedded onto the
surface of superconducting host, an application to MnNb(110)

In this talk I describe a new, first-principles-based theory of magnetic
impurities on superconducting surfaces and multilayers. I show how the
Green's function embedding technique, commonplace in multiple scattering
theory, can be extended to the fully relativistic Bogoliubov-de Gennes
equation in such systems. The resulting theory is used to study the
Yu-Shiba-Rusinov (YSR) states in the atomic monomer and dimers of Mn on top
of Nb surfaces. The results are compared to recent experimental findings
and previous tight-binding calculations. We also investigate the formation
of the YSR states in the presence of different magnetic configurations and
exchange magnetic fields and study the effect of spin-orbit coupling as
well.

Minden érdeklődőt szeretettel várunk.

Asbóth János
szemináriumi koordinátor