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Campagnano G, Lucignano P, Giuliano D, et al. Spin-orbit coupling and anomalous Josephson effect in nanowires. J Phys Condens Matter. 2015;27(20):205301doi: 10.1088/0953-8984/27/20/205301.
Campagnano, G., Lucignano, P., Giuliano, D., & Tagliacozzo, A. (2015). Spin-orbit coupling and anomalous Josephson effect in nanowires. Journal of physics. Condensed matter : an Institute of Physics journal, 27(20), 205301. https://doi.org/10.1088/0953-8984/27/20/205301
Campagnano, G, et al. "Spin-orbit coupling and anomalous Josephson effect in nanowires." Journal of physics. Condensed matter : an Institute of Physics journal vol. 27,20 (2015): 205301. doi: https://doi.org/10.1088/0953-8984/27/20/205301
Campagnano G, Lucignano P, Giuliano D, Tagliacozzo A. Spin-orbit coupling and anomalous Josephson effect in nanowires. J Phys Condens Matter. 2015 May 27;27(20):205301. doi: 10.1088/0953-8984/27/20/205301. Epub 2015 May 07. PMID: 25951621.
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J Phys Condens Matter. 2015 May 27;27(20):205301. doi: 10.1088/0953-8984/27/20/205301. Epub 2015 May 07.

Spin-orbit coupling and anomalous Josephson effect in nanowires.

Journal of physics. Condensed matter : an Institute of Physics journal

G Campagnano, P Lucignano, D Giuliano, A Tagliacozzo

Affiliations

  1. Dipartimento di Fisica, Università di Napoli 'Federico II', Monte S.Angelo, I-80126 Napoli, Italy. CNR-SPIN, Monte S.Angelo via Cinthia, I-80126 Napoli, Italy.

PMID: 25951621 DOI: 10.1088/0953-8984/27/20/205301

Abstract

A superconductor-semiconducting nanowire-superconductor heterostructure in the presence of spin-orbit coupling and magnetic field can support a supercurrent even in the absence of phase difference between the superconducting electrodes. We investigate this phenomenon—the anomalous Josephson effect—employing a model capable of describing many bands in the normal region. We discuss the geometrical and symmetry conditions required to have a finite anomalous supercurrent, and in particular we show that this phenomenon is enhanced when the Fermi level is located close to a band opening in the normal region.

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