The hybridization of Yu-Shiba-Rusinov (YSR) states in dimers of magnetic impurities leads to molecularlike bonding and antibonding modes. In many-impurity systems, the interaction gives rise to YSR bands and can even result in the formation of a topologically nontrivial superconducting state, characterized by Majorana fermions at the edges of the system. To obtain a more detailed understanding of these interactions, we investigate the coupling of YSR states in short one-dimensional Fe chains on clean Nb(110). We observe a splitting of the single-atom YSR peaks into multiple states with even or odd spatial symmetry and identify a peculiar dependence of the even and odd states' energy position on the chain length.
Description
Phys. Rev. B 103, 235437 (2021) - Coupling of Yu-Shiba-Rusinov states in one-dimensional chains of Fe atoms on Nb(110)
%0 Journal Article
%1 PhysRevB.103.235437
%A Friedrich, Felix
%A Boshuis, Robin
%A Bode, Matthias
%A Odobesko, Artem
%D 2021
%I American Physical Society
%J Phys. Rev. B
%K a
%N 23
%P 235437
%R 10.1103/PhysRevB.103.235437
%T Coupling of Yu-Shiba-Rusinov states in one-dimensional chains of Fe atoms on Nb(110)
%U https://link.aps.org/doi/10.1103/PhysRevB.103.235437
%V 103
%X The hybridization of Yu-Shiba-Rusinov (YSR) states in dimers of magnetic impurities leads to molecularlike bonding and antibonding modes. In many-impurity systems, the interaction gives rise to YSR bands and can even result in the formation of a topologically nontrivial superconducting state, characterized by Majorana fermions at the edges of the system. To obtain a more detailed understanding of these interactions, we investigate the coupling of YSR states in short one-dimensional Fe chains on clean Nb(110). We observe a splitting of the single-atom YSR peaks into multiple states with even or odd spatial symmetry and identify a peculiar dependence of the even and odd states' energy position on the chain length.
@article{PhysRevB.103.235437,
abstract = {The hybridization of Yu-Shiba-Rusinov (YSR) states in dimers of magnetic impurities leads to molecularlike bonding and antibonding modes. In many-impurity systems, the interaction gives rise to YSR bands and can even result in the formation of a topologically nontrivial superconducting state, characterized by Majorana fermions at the edges of the system. To obtain a more detailed understanding of these interactions, we investigate the coupling of YSR states in short one-dimensional Fe chains on clean Nb(110). We observe a splitting of the single-atom YSR peaks into multiple states with even or odd spatial symmetry and identify a peculiar dependence of the even and odd states' energy position on the chain length.},
added-at = {2021-08-13T12:10:53.000+0200},
author = {Friedrich, Felix and Boshuis, Robin and Bode, Matthias and Odobesko, Artem},
biburl = {https://www.bibsonomy.org/bibtex/2577be00cb4f524c4f1d931e21dee23a8/ctqmat},
day = 28,
description = {Phys. Rev. B 103, 235437 (2021) - Coupling of Yu-Shiba-Rusinov states in one-dimensional chains of Fe atoms on Nb(110)},
doi = {10.1103/PhysRevB.103.235437},
interhash = {2efa16d94de5acb538c7971a0b0be7cc},
intrahash = {577be00cb4f524c4f1d931e21dee23a8},
journal = {Phys. Rev. B},
keywords = {a},
month = jun,
number = 23,
numpages = {7},
pages = 235437,
publisher = {American Physical Society},
timestamp = {2023-01-16T14:49:29.000+0100},
title = {Coupling of Yu-Shiba-Rusinov states in one-dimensional chains of Fe atoms on Nb(110)},
url = {https://link.aps.org/doi/10.1103/PhysRevB.103.235437},
volume = 103,
year = 2021
}