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Wave-function hybridization in Yu-Shiba-Rusinov dimers

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arxiv 1801.00848 v1 pith:REGKQRAZ submitted 2018-01-02 cond-mat.mes-hall

Wave-function hybridization in Yu-Shiba-Rusinov dimers

Michael Ruby , Benjamin W. Heinrich , Yang Peng , Felix von Oppen , Katharina J. Franke This is my paper
classification cond-mat.mes-hall
keywords hybridizationstatesdimerinvestigatemagneticorbitalssuperconductingyu-shiba-rusinov
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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.

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