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Majorana fermions in spin-orbit-coupled ferromagnetic Josephson junctions
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
2011 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 84, no 18, 180509(R)- p.Article in journal (Refereed) Published
Abstract [en]

We study all possible Majorana modes in two-dimensional spin-orbit-coupled ferromagnetic superconductor-normal state-superconductor (SNS) Josephson junctions and propose experiments to detect them. With the S region in a nontrivial topological phase and a superconducting phase difference phi = pi across the junction, two delocalized Majorana fermions with no excitation gap appear in the N region. In addition, if S and N belong to different topological phases and have well separated the Fermi surfaces, localized Majorana fermions with a finite excitation gap also emerge at both SN interfaces for all phi.

Place, publisher, year, edition, pages
2011. Vol. 84, no 18, 180509(R)- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-163661DOI: 10.1103/PhysRevB.84.180509ISI: 000297100900002OAI: oai:DiVA.org:uu-163661DiVA: diva2:464970
Available from: 2011-12-14 Created: 2011-12-13 Last updated: 2017-12-08Bibliographically approved

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Black-Schaffer, Annica M.

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