Spin-orbit protection of induced superconductivity in Majorana nanowires

Jouri D.S. Bommer; Hao Zhang; Önder Gül; Bas Nijholt; Michael Wimmer; Filipp N. Rybakov; Julien Garaud; Donjan Rodic; Egor Babaev; Matthias Troyer; Diana Car; Sébastien R. Plissard; Erik P.A.M. Bakkers; Kenji Watanabe; Takashi Taniguchi; Leo P. Kouwenhoven

doi:10.1103/PhysRevLett.122.187702

Spin-orbit protection of induced superconductivity in Majorana nanowires

Jouri D.S. Bommer (Corresponding author)
, Hao Zhang (Corresponding author)
, Önder Gül
, Bas Nijholt
, Michael Wimmer
, Filipp N. Rybakov
, Julien Garaud
, Donjan Rodic
, Egor Babaev
, Matthias Troyer
, Diana Car
, Sébastien R. Plissard
, Erik P.A.M. Bakkers
, Kenji Watanabe
, Takashi Taniguchi
, Leo P. Kouwenhoven

Research output: Contribution to journal › Article › Academic › peer-review

71 Citations (Scopus)

176 Downloads (Pure)

Abstract

Spin-orbit interaction (SOI) plays a key role in creating Majorana zero modes in semiconductor nanowires proximity coupled to a superconductor. We track the evolution of the induced superconducting gap in InSb nanowires coupled to a NbTiN superconductor in a large range of magnetic field strengths and orientations. Based on realistic simulations of our devices, we reveal SOI with a strength of 0.15-0.35 eV Å. Our approach identifies the direction of the spin-orbit field, which is strongly affected by the superconductor geometry and electrostatic gates.

Original language	English
Article number	187702
Number of pages	7
Journal	Physical Review Letters
Volume	122
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.122.187702
Publication status	Published - 9 May 2019

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Bommer, J. D. S., Zhang, H., Gül, Ö., Nijholt, B., Wimmer, M., Rybakov, F. N., Garaud, J., Rodic, D., Babaev, E., Troyer, M., Car, D., Plissard, S. R., Bakkers, E. P. A. M., Watanabe, K., Taniguchi, T., & Kouwenhoven, L. P. (2019). Spin-orbit protection of induced superconductivity in Majorana nanowires. Physical Review Letters, 122(18), Article 187702. https://doi.org/10.1103/PhysRevLett.122.187702

@article{421c60461e1a47d1a34ee93bb21adeec,

title = "Spin-orbit protection of induced superconductivity in Majorana nanowires",

abstract = "Spin-orbit interaction (SOI) plays a key role in creating Majorana zero modes in semiconductor nanowires proximity coupled to a superconductor. We track the evolution of the induced superconducting gap in InSb nanowires coupled to a NbTiN superconductor in a large range of magnetic field strengths and orientations. Based on realistic simulations of our devices, we reveal SOI with a strength of 0.15-0.35 eV {\AA}. Our approach identifies the direction of the spin-orbit field, which is strongly affected by the superconductor geometry and electrostatic gates.",

author = "Bommer, \{Jouri D.S.\} and Hao Zhang and {\"O}nder G{\"u}l and Bas Nijholt and Michael Wimmer and Rybakov, \{Filipp N.\} and Julien Garaud and Donjan Rodic and Egor Babaev and Matthias Troyer and Diana Car and Plissard, \{S{\'e}bastien R.\} and Bakkers, \{Erik P.A.M.\} and Kenji Watanabe and Takashi Taniguchi and Kouwenhoven, \{Leo P.\}",

year = "2019",

month = may,

day = "9",

doi = "10.1103/PhysRevLett.122.187702",

language = "English",

volume = "122",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "18",

}

Bommer, JDS, Zhang, H, Gül, Ö, Nijholt, B, Wimmer, M, Rybakov, FN, Garaud, J, Rodic, D, Babaev, E, Troyer, M, Car, D, Plissard, SR, Bakkers, EPAM, Watanabe, K, Taniguchi, T & Kouwenhoven, LP 2019, 'Spin-orbit protection of induced superconductivity in Majorana nanowires', Physical Review Letters, vol. 122, no. 18, 187702. https://doi.org/10.1103/PhysRevLett.122.187702

TY - JOUR

T1 - Spin-orbit protection of induced superconductivity in Majorana nanowires

AU - Bommer, Jouri D.S.

AU - Zhang, Hao

AU - Gül, Önder

AU - Nijholt, Bas

AU - Wimmer, Michael

AU - Rybakov, Filipp N.

AU - Garaud, Julien

AU - Rodic, Donjan

AU - Babaev, Egor

AU - Troyer, Matthias

AU - Car, Diana

AU - Plissard, Sébastien R.

AU - Bakkers, Erik P.A.M.

AU - Watanabe, Kenji

AU - Taniguchi, Takashi

AU - Kouwenhoven, Leo P.

PY - 2019/5/9

Y1 - 2019/5/9

N2 - Spin-orbit interaction (SOI) plays a key role in creating Majorana zero modes in semiconductor nanowires proximity coupled to a superconductor. We track the evolution of the induced superconducting gap in InSb nanowires coupled to a NbTiN superconductor in a large range of magnetic field strengths and orientations. Based on realistic simulations of our devices, we reveal SOI with a strength of 0.15-0.35 eV Å. Our approach identifies the direction of the spin-orbit field, which is strongly affected by the superconductor geometry and electrostatic gates.

AB - Spin-orbit interaction (SOI) plays a key role in creating Majorana zero modes in semiconductor nanowires proximity coupled to a superconductor. We track the evolution of the induced superconducting gap in InSb nanowires coupled to a NbTiN superconductor in a large range of magnetic field strengths and orientations. Based on realistic simulations of our devices, we reveal SOI with a strength of 0.15-0.35 eV Å. Our approach identifies the direction of the spin-orbit field, which is strongly affected by the superconductor geometry and electrostatic gates.

UR - https://www.scopus.com/pages/publications/85065836132

U2 - 10.1103/PhysRevLett.122.187702

DO - 10.1103/PhysRevLett.122.187702

M3 - Article

C2 - 31144896

AN - SCOPUS:85065836132

SN - 0031-9007

VL - 122

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

M1 - 187702

ER -

Spin-orbit protection of induced superconductivity in Majorana nanowires

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