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Spin-Orbit Protection of Induced Superconductivity in Majorana Nanowires
Delft Univ Technol, QuTech, NL-2600 GA Delft, Netherlands.;Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands..
Delft Univ Technol, QuTech, NL-2600 GA Delft, Netherlands.;Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands.;Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Dept Phys, Beijing 100084, Peoples R China..
Delft Univ Technol, QuTech, NL-2600 GA Delft, Netherlands.;Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands..
Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands..
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2019 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 122, no 18, article id 187702Article in journal (Refereed) Published
Abstract [en]

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 angstrom. Our approach identifies the direction of the spin-orbit field, which is strongly affected by the superconductor geometry and electrostatic gates.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2019. Vol. 122, no 18, article id 187702
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Condensed Matter Physics
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URN: urn:nbn:se:kth:diva-252376DOI: 10.1103/PhysRevLett.122.187702ISI: 000467404500003Scopus ID: 2-s2.0-85065836132OAI: oai:DiVA.org:kth-252376DiVA, id: diva2:1337920
Note

QC 20190718

Available from: 2019-07-18 Created: 2019-07-18 Last updated: 2019-10-10Bibliographically approved

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Rybakov, Filipp N.Babaev, Egor

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