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Josephson effect of superconductors with J=3/2 electrons
| 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 |
| URI: | http://hdl.handle.net/2115/82051 |
| 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)
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Submitter: 浅野 泰寛
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