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Finite length effect on supercurrents between trivial and topological superconductors
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
2018 (English)In: The European Physical Journal Special Topics, ISSN 1951-6355, E-ISSN 1951-6401, Vol. 227, no 12, p. 1387-1396Article in journal (Refereed) Published
Abstract [en]

We numerically analyze the effect of finite length of the superconducting regions on the low-energy spectrum, current-phase curves, and critical currents in junctions between trivial and topological superconductors. Such junctions are assumed to arise in nanowires with strong spin-orbit coupling under external magnetic fields and proximity-induced superconductivity. We show that all these quantities exhibit a strong dependence on the length of the topological sector in the topological phase and serve as indicators of the topological phase and thus the emergence of Majorana bound states at the end of the topological superconductor.

Place, publisher, year, edition, pages
2018. Vol. 227, no 12, p. 1387-1396
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-375853DOI: 10.1140/epjst/e2018-800101-0ISI: 000455553900008OAI: oai:DiVA.org:uu-375853DiVA, id: diva2:1284906
Funder
Swedish Research Council, 621-2014-3721Swedish Foundation for Strategic Research Knut and Alice Wallenberg FoundationGöran Gustafsson Foundation for Research in Natural Sciences and MedicineAvailable from: 2019-02-01 Created: 2019-02-01 Last updated: 2019-02-01Bibliographically approved

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