Temperature induced shifts of Yu-Shiba-Rusinov resonances in nanowire-based hybrid quantum dots

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Temperature induced shifts of Yu-Shiba-Rusinov resonances in nanowire-based hybrid quantum dots. / Estrada Saldana, Juan Carlos; Vekris, Alexandros; Sosnovtseva, Victoria; Kanne, Thomas; Krogstrup, Peter; Grove-Rasmussen, Kasper; Nygard, Jesper.

I: Communications Physics, Bind 3, Nr. 1, 125, 10.07.2020.

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Harvard

Estrada Saldana, JC, Vekris, A, Sosnovtseva, V, Kanne, T, Krogstrup, P, Grove-Rasmussen, K & Nygard, J 2020, 'Temperature induced shifts of Yu-Shiba-Rusinov resonances in nanowire-based hybrid quantum dots', Communications Physics, bind 3, nr. 1, 125. https://doi.org/10.1038/s42005-020-0392-5

APA

Estrada Saldana, J. C., Vekris, A., Sosnovtseva, V., Kanne, T., Krogstrup, P., Grove-Rasmussen, K., & Nygard, J. (2020). Temperature induced shifts of Yu-Shiba-Rusinov resonances in nanowire-based hybrid quantum dots. Communications Physics, 3(1), [125]. https://doi.org/10.1038/s42005-020-0392-5

Vancouver

Estrada Saldana JC, Vekris A, Sosnovtseva V, Kanne T, Krogstrup P, Grove-Rasmussen K o.a. Temperature induced shifts of Yu-Shiba-Rusinov resonances in nanowire-based hybrid quantum dots. Communications Physics. 2020 jul. 10;3(1). 125. https://doi.org/10.1038/s42005-020-0392-5

Author

Estrada Saldana, Juan Carlos ; Vekris, Alexandros ; Sosnovtseva, Victoria ; Kanne, Thomas ; Krogstrup, Peter ; Grove-Rasmussen, Kasper ; Nygard, Jesper. / Temperature induced shifts of Yu-Shiba-Rusinov resonances in nanowire-based hybrid quantum dots. I: Communications Physics. 2020 ; Bind 3, Nr. 1.

Bibtex

@article{ab6fafa2da4d4f7a81bad9c4dab41644,
title = "Temperature induced shifts of Yu-Shiba-Rusinov resonances in nanowire-based hybrid quantum dots",
abstract = "The strong coupling of a superconductor to a spinful quantum dot results in Yu-Shiba-Rusinov discrete subgap excitations. In isolation and at zero temperature, the excitations are sharp resonances. In transport experiments, however, they show as broad differential conductance peaks. Here we obtain the lineshape of the peaks and their temperature dependence in superconductor-quantum dot-metal nanowire-based devices. Unexpectedly, we find that the peaks shift in energy with temperature, with the shift magnitude and sign depending on ground state parity and bias voltage. Additionally, we empirically find a power-law trend of the peak area versus temperature. These observations are not explained by current models.",
keywords = "Superconductivity, Quantum dots, Hybrid nanowires, Subgap states, Kondo effect",
author = "{Estrada Saldana}, {Juan Carlos} and Alexandros Vekris and Victoria Sosnovtseva and Thomas Kanne and Peter Krogstrup and Kasper Grove-Rasmussen and Jesper Nygard",
year = "2020",
month = jul,
day = "10",
doi = "10.1038/s42005-020-0392-5",
language = "English",
volume = "3",
journal = "Communications Physics",
issn = "2399-3650",
publisher = "Springer",
number = "1",

}

RIS

TY - JOUR

T1 - Temperature induced shifts of Yu-Shiba-Rusinov resonances in nanowire-based hybrid quantum dots

AU - Estrada Saldana, Juan Carlos

AU - Vekris, Alexandros

AU - Sosnovtseva, Victoria

AU - Kanne, Thomas

AU - Krogstrup, Peter

AU - Grove-Rasmussen, Kasper

AU - Nygard, Jesper

PY - 2020/7/10

Y1 - 2020/7/10

N2 - The strong coupling of a superconductor to a spinful quantum dot results in Yu-Shiba-Rusinov discrete subgap excitations. In isolation and at zero temperature, the excitations are sharp resonances. In transport experiments, however, they show as broad differential conductance peaks. Here we obtain the lineshape of the peaks and their temperature dependence in superconductor-quantum dot-metal nanowire-based devices. Unexpectedly, we find that the peaks shift in energy with temperature, with the shift magnitude and sign depending on ground state parity and bias voltage. Additionally, we empirically find a power-law trend of the peak area versus temperature. These observations are not explained by current models.

AB - The strong coupling of a superconductor to a spinful quantum dot results in Yu-Shiba-Rusinov discrete subgap excitations. In isolation and at zero temperature, the excitations are sharp resonances. In transport experiments, however, they show as broad differential conductance peaks. Here we obtain the lineshape of the peaks and their temperature dependence in superconductor-quantum dot-metal nanowire-based devices. Unexpectedly, we find that the peaks shift in energy with temperature, with the shift magnitude and sign depending on ground state parity and bias voltage. Additionally, we empirically find a power-law trend of the peak area versus temperature. These observations are not explained by current models.

KW - Superconductivity

KW - Quantum dots

KW - Hybrid nanowires

KW - Subgap states

KW - Kondo effect

U2 - 10.1038/s42005-020-0392-5

DO - 10.1038/s42005-020-0392-5

M3 - Journal article

VL - 3

JO - Communications Physics

JF - Communications Physics

SN - 2399-3650

IS - 1

M1 - 125

ER -

ID: 246350366