Regensburg 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 51: Poster Wednesday: Atomic-Scale Studies of Spins on Surfaces with Scanning Tunneling Microscopy
O 51.8: Poster
Mittwoch, 7. September 2022, 18:00–20:00, P4
Local characterization of Yu-Shiba-Rusinov excitations in magnetic field — •Niels P.E. van Mullekom1, Benjamin Verlhac1, Werner M.J. van Weerdenburg1, Hermann Osterhage1, Manuel Steinbrecher1, Katharina J. Franke2, and Alexander A. Khajetoorians1 — 1Institute for Molecules and Materials, Radboud University Nijmegen, the Netherlands — 2Fachbereich Physik, Freie Universität Berlin, Germany.
An isolated spin, typically derived from an atomic or molecular adsorbate, can interact with a BCS superconductor leading to so-called Yu-Shiba-Rusinov (YSR) excitations. These excitations can be probed with scanning tunneling microscopy/spectroscopy (STM/STS), which are often characterized by resonances that reside in the superconducting gap and are linked to the excitation energies. These spin-based excitations to date have been poorly studied in magnetic fields, due to influence of magnetic fields on typical BCS superconductors. Here, utilizing STM/STS at milliKelvin temperatures, we report on a study of the YSR excitations of individual adsorbates in variable magnetic field.