SKM 2023 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 8: Yu-Shiba-Rusinov Systems

TT 8.7: Talk

Monday, March 27, 2023, 16:45–17:00, HSZ 103

Yu-Shiba-Rusinov states in small Fe clusters on Pb(111) — •Nora Kucska, Krisztián Palotás, Andras Laszloffy, and Balazs Ujfalussy — Wigner Research Centre for Physics, Budapest, Hungary

By solving the fully relativistic Bogoliubov-de Gennes equations by band-theoretical methods, we investigate the Yu-Shiba-Rusinov (YSR) states of single, double and triple magnetic Fe adatoms on the top of Pb(111) surface. First, we show that the local density of states in the normal state plays a key role in the formation of the YSR states that appear in the interior of the superconducting gap. We discuss the effects of different atomic arrangements, the role of lattice relaxations and various spin configurations on the YSR states, and we compare our results to recent experiments.