Asymmetric current-phase relation due to spin-orbit interaction in semiconductor nanowire Josephson junction

Tomohiro Yokoyama, Mikio Eto, Yuli V. Nazarov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We theoretically study the current-phase relation in semiconductor nanowire Josephson junction in the presence of spin-orbit interaction. In the nanowire, the impurity scattering with strong SO interaction is taken into account using the random matrix theory. In the absence of magnetic field, the Josephson current I and phase difference φ between the superconductors satisfy the relation of I(φ) = -I(-φ). In the presence of magnetic field along the nanowire, the interplay between the SO interaction and Zeeman effect breaks the current-phase relation of I(φ) = -I(-φ). In this case, we show that the critical current depends on the current direction, which qualitatively agrees with recent experimental findings.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
PublisherAmerican Institute of Physics Inc.
Pages423-424
Number of pages2
Volume1566
ISBN (Print)9780735411944
DOIs
Publication statusPublished - 2013
Event31st International Conference on the Physics of Semiconductors, ICPS 2012 - Zurich, Switzerland
Duration: 2012 Jul 292012 Aug 3

Other

Other31st International Conference on the Physics of Semiconductors, ICPS 2012
CountrySwitzerland
CityZurich
Period12/7/2912/8/3

Fingerprint

spin-orbit interactions
Josephson junctions
nanowires
Zeeman effect
matrix theory
magnetic fields
critical current
impurities
scattering
interactions

Keywords

  • Andreev bound state
  • Josephson junction
  • semiconductor nanowire
  • spin-orbit interaction

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yokoyama, T., Eto, M., & Nazarov, Y. V. (2013). Asymmetric current-phase relation due to spin-orbit interaction in semiconductor nanowire Josephson junction. In AIP Conference Proceedings (Vol. 1566, pp. 423-424). American Institute of Physics Inc.. https://doi.org/10.1063/1.4848466

Asymmetric current-phase relation due to spin-orbit interaction in semiconductor nanowire Josephson junction. / Yokoyama, Tomohiro; Eto, Mikio; Nazarov, Yuli V.

AIP Conference Proceedings. Vol. 1566 American Institute of Physics Inc., 2013. p. 423-424.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yokoyama, T, Eto, M & Nazarov, YV 2013, Asymmetric current-phase relation due to spin-orbit interaction in semiconductor nanowire Josephson junction. in AIP Conference Proceedings. vol. 1566, American Institute of Physics Inc., pp. 423-424, 31st International Conference on the Physics of Semiconductors, ICPS 2012, Zurich, Switzerland, 12/7/29. https://doi.org/10.1063/1.4848466
Yokoyama T, Eto M, Nazarov YV. Asymmetric current-phase relation due to spin-orbit interaction in semiconductor nanowire Josephson junction. In AIP Conference Proceedings. Vol. 1566. American Institute of Physics Inc. 2013. p. 423-424 https://doi.org/10.1063/1.4848466
Yokoyama, Tomohiro ; Eto, Mikio ; Nazarov, Yuli V. / Asymmetric current-phase relation due to spin-orbit interaction in semiconductor nanowire Josephson junction. AIP Conference Proceedings. Vol. 1566 American Institute of Physics Inc., 2013. pp. 423-424
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