Nonsymmorphic Dirac semimetal and carrier dynamics in the doped spin-orbit-coupled Mott insulator Sr2IrO4
DC Field | Value | Language |
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dc.contributor.author | Han, J. W. | - |
dc.contributor.author | Kim, Sun-Woo | - |
dc.contributor.author | Kyung, W. S. | - |
dc.contributor.author | Kim, C. | - |
dc.contributor.author | Cao, G. | - |
dc.contributor.author | Chen, X. | - |
dc.contributor.author | Wilson, S. D. | - |
dc.contributor.author | Cheon, Sangmo | - |
dc.contributor.author | Lee, J. S. | - |
dc.date.accessioned | 2022-07-07T22:18:27Z | - |
dc.date.available | 2022-07-07T22:18:27Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2020-07 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/145446 | - |
dc.description.abstract | A Dirac fermion emerges as a result of interplay between symmetry and topology in condensed matter. Current research moves towards investigating the Dirac fermions in the presence of many-body effects in correlated systems. Here, we demonstrate the emergence of a correlation-induced symmetry-protected Dirac semimetal state in the lightly doped spin-orbit-coupled Mott insulator Sr2IrO4. We find that the nonsymmorphic crystalline symmetry stabilizes a Dirac line-node semimetal and that the correlation-induced symmetry-breaking electronic order further leads to a phase transition from the Dirac line-node to a Dirac point-node semimetal. The latter state is experimentally confirmed by angle-resolved photoemission spectroscopy and terahertz spectroscopy on Sr-2(Ir, Tb)O-4 and (Sr, La)(2)IrO4. Remarkably, the electrodynamics of the massless Dirac carriers is governed by the extremely small scattering rate of about 6 cm(-1) even at room temperature, which is iconic behavior of relativistic quasiparticles. Temperature-dependent changes in electrodynamic parameters are also consistently explained based on the Dirac point-node semimetal state. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Nonsymmorphic Dirac semimetal and carrier dynamics in the doped spin-orbit-coupled Mott insulator Sr2IrO4 | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Cheon, Sangmo | - |
dc.identifier.doi | 10.1103/PhysRevB.102.041108 | - |
dc.identifier.scopusid | 2-s2.0-85089388452 | - |
dc.identifier.wosid | 000545869000001 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.102, no.4, pp.1 - 6 | - |
dc.relation.isPartOf | PHYSICAL REVIEW B | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 102 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 6 | - |
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 | ELECTRON-ELECTRON INTERACTIONS | - |
dc.subject.keywordPlus | OPTICAL-CONSTANTS | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | PHYSICS | - |
dc.subject.keywordPlus | METAL | - |
dc.identifier.url | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.041108 | - |
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