Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 27, Issue 20, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/27/20/205301
Keywords
Josephson effect; spin-orbit coupling; semiconducting nanowires
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Funding
- FIRB Projects 'HybridNanoDev' [RBFR1236VV]
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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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