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Anomalous proximity effect and theoretical design for its realization

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Title: Anomalous proximity effect and theoretical design for its realization
Authors: Ikegaya, Satoshi Browse this author
Asano, Yasuhiro Browse this author →KAKEN DB
Tanaka, Yukio Browse this author
Issue Date: 16-May-2015
Publisher: American Physical Society
Journal Title: Physical review B
Volume: 91
Issue: 17
Start Page: 174511
Publisher DOI: 10.1103/PhysRevB.91.174511
Abstract: We discuss the stability of zero-energy states appearing in a dirty normal metal attached to a superconducting thin film with Dresselhaus [110] spin-orbit coupling under an in-plane Zeeman field. The Dresselhaus superconductor preserves an additional chiral symmetry and traps more than one zero-energy state at its edges. All the zero-energy states at an edge belong to the same chirality in large Zeeman fields due to the effective p-wave pairing symmetry. The pure chiral nature of the wave function enables the zero-energy states to penetrate the dirty normal metal while retaining their high degree of degeneracy. We prove the perfect Andreev reflection into the dirty normal metal at zero energy.
Rights: ©2015 American Physical Society
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 池谷 聡

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