Multiband nature of room-temperature superconductivity in LaH10 at high pressure
DC Field | Value | Language |
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dc.contributor.author | Wang, Chongze | - |
dc.contributor.author | Yi, Seho | - |
dc.contributor.author | Cho, Jun-Hyung | - |
dc.date.accessioned | 2022-07-08T12:35:01Z | - |
dc.date.available | 2022-07-08T12:35:01Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2020-03 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/146102 | - |
dc.description.abstract | Recently, the discovery of room-temperature superconductivity (SC) was experimentally realized in the fcc phase of LaH io under megabar pressures. This SC of compressed LaH10 has been explained in terms of strong electron-phonon coupling (EPC), but the detailed nature of how the large EPC constant and high superconducting transition temperature T-c are attained has not yet been clearly identified. Based on the density-functional theory and the Migdal-Eliashberg formalism, we reveal the presence of two nodeless, anisotropic superconducting gaps on the Fermi surface (FS). Here, the small gap is mostly associated with the hybridized states of H s and La f orbitals on the three outer FS sheets, while the large gap arises mainly from the hybridized state of neighboring H s or p orbitals on the one inner FS sheet. Further, we find that compressed YH10 with the same sodalitelike clathrate structure has the two additional FS sheets, enhancing EPC constant and T-c. It is thus demonstrated that the nature of room-temperature SC in compressed LaH10 and YH10 features the multiband pairing of hybridized electronic states with large EPC constants. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Multiband nature of room-temperature superconductivity in LaH10 at high pressure | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Cho, Jun-Hyung | - |
dc.identifier.doi | 10.1103/PhysRevB.101.104506 | - |
dc.identifier.scopusid | 2-s2.0-85083296250 | - |
dc.identifier.wosid | 000519697600003 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.101, no.10, pp.1 - 5 | - |
dc.relation.isPartOf | PHYSICAL REVIEW B | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 101 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 5 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
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 | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | LATTICE-VIBRATIONS | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordPlus | HYDRIDE | - |
dc.subject.keywordPlus | LANTHANUM | - |
dc.subject.keywordPlus | ELECTRONS | - |
dc.identifier.url | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.101.104506 | - |
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