Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions

Research output: Contribution to journalJournal articlepeer-review

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Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions. / Razmadze, D.; Souto, R. Seoane; Galletti, L.; Maiani, A.; Liu, Yu; Krogstrup, P.; Schrade, C.; Gyenis, A.; Marcus, C. M.; Vaitiekenas, S.

In: Physical Review B, Vol. 107, No. 8, 081301, 13.02.2023.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Razmadze, D, Souto, RS, Galletti, L, Maiani, A, Liu, Y, Krogstrup, P, Schrade, C, Gyenis, A, Marcus, CM & Vaitiekenas, S 2023, 'Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions', Physical Review B, vol. 107, no. 8, 081301. https://doi.org/10.1103/PhysRevB.107.L081301

APA

Razmadze, D., Souto, R. S., Galletti, L., Maiani, A., Liu, Y., Krogstrup, P., Schrade, C., Gyenis, A., Marcus, C. M., & Vaitiekenas, S. (2023). Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions. Physical Review B, 107(8), [081301]. https://doi.org/10.1103/PhysRevB.107.L081301

Vancouver

Razmadze D, Souto RS, Galletti L, Maiani A, Liu Y, Krogstrup P et al. Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions. Physical Review B. 2023 Feb 13;107(8). 081301. https://doi.org/10.1103/PhysRevB.107.L081301

Author

Razmadze, D. ; Souto, R. Seoane ; Galletti, L. ; Maiani, A. ; Liu, Yu ; Krogstrup, P. ; Schrade, C. ; Gyenis, A. ; Marcus, C. M. ; Vaitiekenas, S. / Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions. In: Physical Review B. 2023 ; Vol. 107, No. 8.

Bibtex

@article{ee4d8a7a3c4840f7b59d6c9a22f456db,
title = "Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions",
abstract = "We report supercurrent transport measurements in hybrid Josephson junctions comprising semiconducting InAs nanowires with epitaxial ferromagnetic insulator EuS and superconducting Al coatings. The wires display a hysteretic superconducting window close to the coercivity, away from zero external magnetic field. Using a multi-interferometer setup, we measure the current-phase relation of multiple magnetic junctions and find an abrupt switch between pi and 0 phases within the superconducting window. We attribute the 0-pi transition to the discrete flipping of the EuS domains and provide a qualitative theory showing that a sizable exchange field can polarize the junction and lead to the supercurrent reversal. Both 0 and pi phases can be realized at zero external field by demagnetizing the wire.",
keywords = "TRIPLET SUPERCONDUCTIVITY, CRITICAL FIELD, INSULATOR",
author = "D. Razmadze and Souto, {R. Seoane} and L. Galletti and A. Maiani and Yu Liu and P. Krogstrup and C. Schrade and A. Gyenis and Marcus, {C. M.} and S. Vaitiekenas",
year = "2023",
month = feb,
day = "13",
doi = "10.1103/PhysRevB.107.L081301",
language = "English",
volume = "107",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "8",

}

RIS

TY - JOUR

T1 - Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions

AU - Razmadze, D.

AU - Souto, R. Seoane

AU - Galletti, L.

AU - Maiani, A.

AU - Liu, Yu

AU - Krogstrup, P.

AU - Schrade, C.

AU - Gyenis, A.

AU - Marcus, C. M.

AU - Vaitiekenas, S.

PY - 2023/2/13

Y1 - 2023/2/13

N2 - We report supercurrent transport measurements in hybrid Josephson junctions comprising semiconducting InAs nanowires with epitaxial ferromagnetic insulator EuS and superconducting Al coatings. The wires display a hysteretic superconducting window close to the coercivity, away from zero external magnetic field. Using a multi-interferometer setup, we measure the current-phase relation of multiple magnetic junctions and find an abrupt switch between pi and 0 phases within the superconducting window. We attribute the 0-pi transition to the discrete flipping of the EuS domains and provide a qualitative theory showing that a sizable exchange field can polarize the junction and lead to the supercurrent reversal. Both 0 and pi phases can be realized at zero external field by demagnetizing the wire.

AB - We report supercurrent transport measurements in hybrid Josephson junctions comprising semiconducting InAs nanowires with epitaxial ferromagnetic insulator EuS and superconducting Al coatings. The wires display a hysteretic superconducting window close to the coercivity, away from zero external magnetic field. Using a multi-interferometer setup, we measure the current-phase relation of multiple magnetic junctions and find an abrupt switch between pi and 0 phases within the superconducting window. We attribute the 0-pi transition to the discrete flipping of the EuS domains and provide a qualitative theory showing that a sizable exchange field can polarize the junction and lead to the supercurrent reversal. Both 0 and pi phases can be realized at zero external field by demagnetizing the wire.

KW - TRIPLET SUPERCONDUCTIVITY

KW - CRITICAL FIELD

KW - INSULATOR

U2 - 10.1103/PhysRevB.107.L081301

DO - 10.1103/PhysRevB.107.L081301

M3 - Journal article

VL - 107

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 8

M1 - 081301

ER -

ID: 340974494