ELFT HÍRADÓ

[Szeminárium koordinátor <szfi-seminar AT wigner.mta.hu>]

SZFI Seminar
Újfalussy Balázs
(Wigner FK SZFI)
First principles theory of magnetic impurities on superconducting hosts
In previous talks, I extended the methods of band theory to superconductors. 
In this seminar, I discuss how to further extend the theory to treat 
impurities on surfaces of materials in the normal and in the superconducting 
state within multiple scattering theory and Green’s function formalism. It is 
known that, as a consequence of interaction of Cooper pairs with magnetic 
impurities, Yu-Shiba-Rusinov (in short YSR) states form within the 
superconducting gap. In particular, I will show our results on magnetic 
adatoms on the surfaces of Nb(100) and Nb(110) in comparison with 
experiments. I will discuss the role of spin-orbit coupling, and how the 
relative orientation of the magnetization and the size of the exchange 
splitting influence the energy spectra. Further results will be presented for 
various magnetic atoms and hosts.Tuesday, 13 April 2021, 10:00
Teams,  
https://teams.microsoft.com/l/meetup-join/19%3ace423c05cd1543ab9f9905886590ad69%40thread.tacv2/1617975067770?context=%7b%22Tid%22%3a%224d7ddeef-14ff-4911-8c11-401c69384d77%22%2c%22Oid%22%3a%22969d2d4a-5ba8-43f1-bd69-93f0998b025f%22%7d
Language of the talk: English
All interested are welcome!
Róbert Juhászszfi-seminar AT wigner.mta.hu