Pressure-induced topological superconductivity in the spin-orbit Mott insulator GaTa4Se8
DC Field | Value | Language |
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dc.contributor.author | Park, Moon Jip | - |
dc.contributor.author | Sim, GiBaik | - |
dc.contributor.author | Jeong, Min Yong | - |
dc.contributor.author | Mishra, Archana | - |
dc.contributor.author | Han, Myung Joon | - |
dc.contributor.author | Lee, SungBin | - |
dc.date.accessioned | 2023-09-11T01:59:39Z | - |
dc.date.available | 2023-09-11T01:59:39Z | - |
dc.date.created | 2023-07-19 | - |
dc.date.issued | 2020-06 | - |
dc.identifier.issn | 23974648 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/190439 | - |
dc.description.abstract | Lacunar spinel GaTa(4)Se(8)is a unique example of spin-orbit coupled Mott insulator described by molecularj(eff) = 3/2 states. It becomes superconducting atT(c) = 5.8 K under pressure without doping. In this work, we show, this pressure-induced superconductivity is a realization of a new type topological phase characterized by spin-2 Cooper pairs. Starting from first-principles density functional calculations and random phase approximation, we construct the microscopic model and perform the detailed analysis. Applying pressure is found to trigger the virtual interband tunneling processes assisted by strong Hund coupling, thereby stabilizing a particulard-wave quintet channel. Furthermore, we show that its Bogoliubov quasiparticles and their surface states exhibit novel topological nature. To verify our theory, we propose unique experimental signatures that can be measured by Josephson junction transport and scanning tunneling microscope. Our findings open up new directions searching for exotic superconductivity in spin-orbit coupled materials. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Pressure-induced topological superconductivity in the spin-orbit Mott insulator GaTa4Se8 | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Moon Jip | - |
dc.identifier.doi | 10.1038/s41535-020-0246-0 | - |
dc.identifier.scopusid | 2-s2.0-85087064240 | - |
dc.identifier.wosid | 000542635600001 | - |
dc.identifier.bibliographicCitation | NPJ QUANTUM MATERIALS, v.5, no.1 | - |
dc.relation.isPartOf | NPJ QUANTUM MATERIALS | - |
dc.citation.title | NPJ QUANTUM MATERIALS | - |
dc.citation.volume | 5 | - |
dc.citation.number | 1 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Quantum Science & Technology | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | ELECTRONIC-PROPERTIES | - |
dc.subject.keywordPlus | PAIRING STATE | - |
dc.identifier.url | https://www.nature.com/articles/s41535-020-0246-0 | - |
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