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Josephson effect of superconductors with J=3/2 electrons

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Title: Josephson effect of superconductors with J=3/2 electrons
Authors: Kim, Dakyeong Browse this author
Kobayashi, Shingo Browse this author
Asano, Yasuhiro Browse this author →KAKEN DB
Issue Date: 27-May-2021
Publisher: American Physical Society (APS)
Journal Title: Physical Review B
Volume: 103
Issue: 18
Start Page: 184516
Publisher DOI: 10.1103/PhysRevB.103.184516
Abstract: The angular momentum of an electron is characterized well by pseudospin with J = 3/2 in the presence of strong spin-orbit interactions. We study theoretically the Josephson effect of superconductors in which two such J = 3/2 electrons form a Cooper pair. Within even-parity symmetry class, pseudospin-quintet pairing states with J = 2 can exist as well as pseudospin-singlet states with J = 0. We focus especially on the Josephson selection rule among these even-parity superconductors. We find that the selection rule between quintet states is more severe than that between spin-triplet states formed by two S = 1/2 electrons. The effects of a pseudospin-active interface on the selection rule are discussed as well as those of odd-frequency Cooper pairs generated by pseudospindependent band structures.
Rights: Copyright (2021) by The 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: 浅野 泰寛

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