Aharonov-Bohm and Aharonov-Casher effects for local and nonlocal Cooper pairs

Damian Tomaszewski, Piotr Busz, Rosa López, Rok Žitko, Minchul Lee, and Jan Martinek
Phys. Rev. B 97, 214506 – Published 11 June 2018

Abstract

We study combined interference effects due to the Aharonov-Bohm (AB) and Aharonov-Casher (AC) phases in a Josephson supercurrent of local and nonlocal (split) Cooper pairs. We analyze a junction between two superconductors interconnected through a normal-state nanostructure with either (i) a ring, where single-electron interference is possible, or (ii) two parallel nanowires, where the single-electron interference can be absent, but the cross Andreev reflection can occur. In the low-transmission regime in both geometries the AB and AC effects can be related to only local or nonlocal Cooper pair transport, respectively.

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  • Received 23 June 2017
  • Revised 6 November 2017

DOI:https://doi.org/10.1103/PhysRevB.97.214506

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Damian Tomaszewski1, Piotr Busz1, Rosa López2, Rok Žitko3,4, Minchul Lee5, and Jan Martinek1

  • 1Institute of Molecular Physics, Polish Academy of Science, Smoluchowskiego 17, 60-179 Poznan, Poland
  • 2Institut de Física Interdisciplinar i de Sistemes Complexos IFISC (CSIC-UIB), E-07122 Palma de Mallorca, Spain
  • 3Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
  • 4Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000 Ljubljana, Slovenia
  • 5Department of Applied Physics and Institute of Natural Science, College of Applied Science, Kyung Hee University, Yongin 17104, Korea

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Issue

Vol. 97, Iss. 21 — 1 June 2018

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