Orbital Picture of Yu-Shiba-Rusinov Multiplets.
We investigate the nature of Yu-Shiba-Rusinov (YSR) subgap states induced by single manganese (Mn) atoms adsorbed on different surface orientations of superconducting lead (Pb). Depending on the adsorption site, we detect a distinct number and characteristic patterns of YSR states around the Mn atoms. We suggest that the YSR states inherit their properties from the Mn d levels, which are split by the surrounding crystal field. The periodicity of the long-range YSR oscillations allows us to identify a dominant coupling of the d states to the outer Fermi sheet of the two-band superconductor Pb.
Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany.
Michael
M
Ruby
Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany.
Yang
Y
Peng
Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany.
Felix
F
von Oppen
Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany.
Benjamin W
BW
Heinrich
Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany.
Katharina J
KJ
Franke