Wave-Function Hybridization in Yu-Shiba-Rusinov Dimers

Physical Review Letters
Michael RubyKatharina J Franke

Abstract

Magnetic adsorbates on superconductors induce local bound states within the superconducting gap. These Yu-Shiba-Rusinov (YSR) states decay slowly away from the impurity compared to atomic orbitals, even in 3D bulk crystals. Here, we use scanning tunneling spectroscopy to investigate their hybridization between two nearby magnetic Mn adatoms on a superconducting Pb(001) surface. We observe that the hybridization leads to the formation of symmetric and antisymmetric combinations of YSR states. We investigate how the structure of the dimer wave functions and the energy splitting depend on the shape of the underlying monomer orbitals and the orientation of the dimer with respect to the Pb lattice.

References

Nov 21, 2015·Physical Review Letters·Michael RubyKatharina J Franke
Nov 26, 2015·Nature Communications·Nino HatterKatharina J Franke
Nov 12, 2016·Physical Review Letters·Michael RubyKatharina J Franke
May 10, 2017·Nature Communications·Deung-Jang ChoiJose Ignacio Pascual
Jun 24, 2017·Nano Letters·Michael RubyKatharina J Franke
Oct 14, 2017·Science·Sangjun JeonAli Yazdani

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Citations

Sep 13, 2020·Nature Communications·Howon KimRoland Wiesendanger
Mar 6, 2021·Physical Review Letters·Dongfei WangRoland Wiesendanger
Apr 3, 2021·Nature Communications·Philip BeckRoland Wiesendanger
Mar 31, 2021·Proceedings of the National Academy of Sciences of the United States of America·Hao DingAli Yazdani
Dec 18, 2019·Nano Letters·Eva LiebhaberKatharina J Franke
Jun 30, 2019·Nano Letters·Shawulienu KezilebiekePeter Liljeroth
Sep 21, 2021·Nano Letters·Olivér KürtössySzabolcs Csonka

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