TY  - JOUR
AU  - Schneider, Lucas
AU  - Steinbrecher, Manuel
AU  - Rózsa, Levente
AU  - Bouaziz, Juba
AU  - Palotás, Krisztián
AU  - dos Santos Dias, Manuel
AU  - Lounis, Samir
AU  - Wiebe, Jens
AU  - Wiesendanger, Roland
TI  - Magnetism and in-gap states of 3d transition metal atoms on superconducting Re
JO  - npj quantum materials
VL  - 4
IS  - 1
SN  - 2397-4648
CY  - [London]
PB  - Nature Publishing Group
M1  - FZJ-2019-04622
SP  - 42
PY  - 2019
AB  - Magnetic atoms on heavy-element superconducting substrates are potential building blocks for realizing topological superconductivity in one- and two-dimensional atomic arrays. Their localized magnetic moments induce so-called Yu-Shiba-Rusinov (YSR) states inside the energy gap of the substrate. In the dilute limit, where the electronic states of the array atoms are only weakly coupled, proximity of the YSR states to the Fermi energy is essential for the formation of topological superconductivity in the band of YSR states. Here, we reveal via scanning tunnel spectroscopy and ab initio calculations of a series of 3d transition metal atoms (Mn, Fe, Co) adsorbed on the heavy-element superconductor Re that the increase of the Kondo coupling and sign change in magnetic anisotropy with d-state filling is accompanied by a shift of the YSR states through the energy gap of the substrate and a crossing of the Fermi level. The uncovered systematic trends enable the identification of the most promising candidates for the realization of topological superconductivity in arrays of similar systems
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000493556200001
DO  - DOI:10.1038/s41535-019-0179-7
UR  - https://juser.fz-juelich.de/record/865060
ER  -