Observation of coexistence of Yu-Shiba-Rusinov states and spin-flip excitations

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Observation of coexistence of Yu-Shiba-Rusinov states and spin-flip excitations. / Shawulienu, Kezilebieke; Žitko, Rok; Dvorak, Marc; Ojanen, Teemu; Liljeroth, Peter.

In: Nano Letters, Vol. 19, No. 7, 10.07.2019, p. 4614-4619.

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@article{5c6115ad4b974c30994b68bc93e0dae9,
title = "Observation of coexistence of Yu-Shiba-Rusinov states and spin-flip excitations",
abstract = "We investigate the spectral evolution in different metal phthalocyanine molecules on NbSe2 surface using scanning tunnelling microscopy (STM) as a function of the coupling with the substrate. For manganese phthalocyanine (MnPc), we demonstrate a smooth spectral crossover from Yu-Shiba-Rusinov (YSR) bound states to spin-flip excitations. This has not been observed previously and it is in contrast to simple theoretical expectations. We corroborate the experimental findings using numerical renormalization group calculations. Our results provide fundamental new insight on the behavior of atomic scale magnetic/SC hybrid systems, which is important, for example, for engineered topological superconductors and spin logic devices.",
keywords = "Magnetic impurity, Yu-Shiba-Rusinov state, scanning tunneling microscopy (STM), spin-flip excitation, superconductor",
author = "Kezilebieke Shawulienu and Rok Žitko and Marc Dvorak and Teemu Ojanen and Peter Liljeroth",
note = "| openaire: EC/H2020/788185/EU//E-DESIGN",
year = "2019",
month = "7",
day = "10",
doi = "10.1021/acs.nanolett.9b01583",
language = "English",
volume = "19",
pages = "4614--4619",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "AMERICAN CHEMICAL SOCIETY",
number = "7",

}

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TY - JOUR

T1 - Observation of coexistence of Yu-Shiba-Rusinov states and spin-flip excitations

AU - Shawulienu, Kezilebieke

AU - Žitko, Rok

AU - Dvorak, Marc

AU - Ojanen, Teemu

AU - Liljeroth, Peter

N1 - | openaire: EC/H2020/788185/EU//E-DESIGN

PY - 2019/7/10

Y1 - 2019/7/10

N2 - We investigate the spectral evolution in different metal phthalocyanine molecules on NbSe2 surface using scanning tunnelling microscopy (STM) as a function of the coupling with the substrate. For manganese phthalocyanine (MnPc), we demonstrate a smooth spectral crossover from Yu-Shiba-Rusinov (YSR) bound states to spin-flip excitations. This has not been observed previously and it is in contrast to simple theoretical expectations. We corroborate the experimental findings using numerical renormalization group calculations. Our results provide fundamental new insight on the behavior of atomic scale magnetic/SC hybrid systems, which is important, for example, for engineered topological superconductors and spin logic devices.

AB - We investigate the spectral evolution in different metal phthalocyanine molecules on NbSe2 surface using scanning tunnelling microscopy (STM) as a function of the coupling with the substrate. For manganese phthalocyanine (MnPc), we demonstrate a smooth spectral crossover from Yu-Shiba-Rusinov (YSR) bound states to spin-flip excitations. This has not been observed previously and it is in contrast to simple theoretical expectations. We corroborate the experimental findings using numerical renormalization group calculations. Our results provide fundamental new insight on the behavior of atomic scale magnetic/SC hybrid systems, which is important, for example, for engineered topological superconductors and spin logic devices.

KW - Magnetic impurity

KW - Yu-Shiba-Rusinov state

KW - scanning tunneling microscopy (STM)

KW - spin-flip excitation

KW - superconductor

UR - http://www.scopus.com/inward/record.url?scp=85069329661&partnerID=8YFLogxK

U2 - 10.1021/acs.nanolett.9b01583

DO - 10.1021/acs.nanolett.9b01583

M3 - Article

VL - 19

SP - 4614

EP - 4619

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 7

ER -

ID: 30110859