Anomalous magneto-resistance of Ni-nanowire/Nb hybrid system

O. V. Skryabina*, S. N. Kozlov, S. V. Egorov, A. A. Klimenko, V. V. Ryazanov, S. V. Bakurskiy, M. Yu Kupriyanov, N. V. Klenov, I. I. Soloviev, A. A. Golubov, K. S. Napolskii, I. A. Golovchanskiy, D. Roditchev, V. S. Stolyarov

*Corresponding author for this work

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Abstract

We examine the influence of superconductivity on the magneto-transport properties of a ferromagnetic Ni nanowire connected to Nb electrodes. We show experimentally and confirm theoretically that the Nb/Ni interface plays an essential role in the electron transport through the device. Just below the superconducting transition, a strong inverse proximity effect from the nanowire suppresses superconducting correlations at Nb/Ni interfaces, resulting in a conventional anisotropic magneto-resistive response. At lower temperatures however, the Nb electrodes operate as superconducting shunts. As the result, the magneto-resistance exhibits a strongly growing hysteretic behavior accompanied by a series of saw-like jumps. The latter are associated with the penetration/escape of individual Abrikosov vortices that influence non-equilibrium processes at the Nb/Ni interface. These effects should be taken into account when designing superconducting quantum nano-hybrids involving ferromagnetic nanowires.

Original languageEnglish
Article number14470
JournalScientific reports
Volume9
Issue number1
DOIs
Publication statusPublished - 9 Oct 2019

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Nanowires
Electrodes
Electron Transport
Equipment and Supplies
Temperature

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Skryabina, O. V., Kozlov, S. N., Egorov, S. V., Klimenko, A. A., Ryazanov, V. V., Bakurskiy, S. V., ... Stolyarov, V. S. (2019). Anomalous magneto-resistance of Ni-nanowire/Nb hybrid system. Scientific reports, 9(1), [14470]. https://doi.org/10.1038/s41598-019-50966-8
Skryabina, O. V. ; Kozlov, S. N. ; Egorov, S. V. ; Klimenko, A. A. ; Ryazanov, V. V. ; Bakurskiy, S. V. ; Kupriyanov, M. Yu ; Klenov, N. V. ; Soloviev, I. I. ; Golubov, A. A. ; Napolskii, K. S. ; Golovchanskiy, I. A. ; Roditchev, D. ; Stolyarov, V. S. / Anomalous magneto-resistance of Ni-nanowire/Nb hybrid system. In: Scientific reports. 2019 ; Vol. 9, No. 1.
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title = "Anomalous magneto-resistance of Ni-nanowire/Nb hybrid system",
abstract = "We examine the influence of superconductivity on the magneto-transport properties of a ferromagnetic Ni nanowire connected to Nb electrodes. We show experimentally and confirm theoretically that the Nb/Ni interface plays an essential role in the electron transport through the device. Just below the superconducting transition, a strong inverse proximity effect from the nanowire suppresses superconducting correlations at Nb/Ni interfaces, resulting in a conventional anisotropic magneto-resistive response. At lower temperatures however, the Nb electrodes operate as superconducting shunts. As the result, the magneto-resistance exhibits a strongly growing hysteretic behavior accompanied by a series of saw-like jumps. The latter are associated with the penetration/escape of individual Abrikosov vortices that influence non-equilibrium processes at the Nb/Ni interface. These effects should be taken into account when designing superconducting quantum nano-hybrids involving ferromagnetic nanowires.",
author = "Skryabina, {O. V.} and Kozlov, {S. N.} and Egorov, {S. V.} and Klimenko, {A. A.} and Ryazanov, {V. V.} and Bakurskiy, {S. V.} and Kupriyanov, {M. Yu} and Klenov, {N. V.} and Soloviev, {I. I.} and Golubov, {A. A.} and Napolskii, {K. S.} and Golovchanskiy, {I. A.} and D. Roditchev and Stolyarov, {V. S.}",
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Skryabina, OV, Kozlov, SN, Egorov, SV, Klimenko, AA, Ryazanov, VV, Bakurskiy, SV, Kupriyanov, MY, Klenov, NV, Soloviev, II, Golubov, AA, Napolskii, KS, Golovchanskiy, IA, Roditchev, D & Stolyarov, VS 2019, 'Anomalous magneto-resistance of Ni-nanowire/Nb hybrid system', Scientific reports, vol. 9, no. 1, 14470. https://doi.org/10.1038/s41598-019-50966-8

Anomalous magneto-resistance of Ni-nanowire/Nb hybrid system. / Skryabina, O. V.; Kozlov, S. N.; Egorov, S. V.; Klimenko, A. A.; Ryazanov, V. V.; Bakurskiy, S. V.; Kupriyanov, M. Yu; Klenov, N. V.; Soloviev, I. I.; Golubov, A. A.; Napolskii, K. S.; Golovchanskiy, I. A.; Roditchev, D.; Stolyarov, V. S.

In: Scientific reports, Vol. 9, No. 1, 14470, 09.10.2019.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Anomalous magneto-resistance of Ni-nanowire/Nb hybrid system

AU - Skryabina, O. V.

AU - Kozlov, S. N.

AU - Egorov, S. V.

AU - Klimenko, A. A.

AU - Ryazanov, V. V.

AU - Bakurskiy, S. V.

AU - Kupriyanov, M. Yu

AU - Klenov, N. V.

AU - Soloviev, I. I.

AU - Golubov, A. A.

AU - Napolskii, K. S.

AU - Golovchanskiy, I. A.

AU - Roditchev, D.

AU - Stolyarov, V. S.

PY - 2019/10/9

Y1 - 2019/10/9

N2 - We examine the influence of superconductivity on the magneto-transport properties of a ferromagnetic Ni nanowire connected to Nb electrodes. We show experimentally and confirm theoretically that the Nb/Ni interface plays an essential role in the electron transport through the device. Just below the superconducting transition, a strong inverse proximity effect from the nanowire suppresses superconducting correlations at Nb/Ni interfaces, resulting in a conventional anisotropic magneto-resistive response. At lower temperatures however, the Nb electrodes operate as superconducting shunts. As the result, the magneto-resistance exhibits a strongly growing hysteretic behavior accompanied by a series of saw-like jumps. The latter are associated with the penetration/escape of individual Abrikosov vortices that influence non-equilibrium processes at the Nb/Ni interface. These effects should be taken into account when designing superconducting quantum nano-hybrids involving ferromagnetic nanowires.

AB - We examine the influence of superconductivity on the magneto-transport properties of a ferromagnetic Ni nanowire connected to Nb electrodes. We show experimentally and confirm theoretically that the Nb/Ni interface plays an essential role in the electron transport through the device. Just below the superconducting transition, a strong inverse proximity effect from the nanowire suppresses superconducting correlations at Nb/Ni interfaces, resulting in a conventional anisotropic magneto-resistive response. At lower temperatures however, the Nb electrodes operate as superconducting shunts. As the result, the magneto-resistance exhibits a strongly growing hysteretic behavior accompanied by a series of saw-like jumps. The latter are associated with the penetration/escape of individual Abrikosov vortices that influence non-equilibrium processes at the Nb/Ni interface. These effects should be taken into account when designing superconducting quantum nano-hybrids involving ferromagnetic nanowires.

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VL - 9

JO - Scientific reports

JF - Scientific reports

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Skryabina OV, Kozlov SN, Egorov SV, Klimenko AA, Ryazanov VV, Bakurskiy SV et al. Anomalous magneto-resistance of Ni-nanowire/Nb hybrid system. Scientific reports. 2019 Oct 9;9(1). 14470. https://doi.org/10.1038/s41598-019-50966-8