Absence of Y-pocket in 1-Fe Brillouin zone and reversed orbital occupation imbalance in FeSe

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dc.contributor.authorHuh, Soonsangko
dc.contributor.authorSeo, Jeongjinko
dc.contributor.authorKim, Beom-seoko
dc.contributor.authorCho, S. H.ko
dc.contributor.authorJung, Jongkeunko
dc.contributor.authorKim, S.ko
dc.contributor.authorKwon, Changilko
dc.contributor.authorKim, Jun Sungko
dc.contributor.authorKoh, Yoonyoungko
dc.contributor.authorKyung, Wonshikko
dc.contributor.authorDenlinger, Jonathan D.ko
dc.contributor.authorKim, Younghakko
dc.contributor.authorChae, B. N.ko
dc.contributor.authorKim, N. D.ko
dc.contributor.authorKim, Yeongkwanko
dc.contributor.authorKim, Changyoungko
dc.date.accessioned2020-04-14T07:20:08Z-
dc.date.available2020-04-14T07:20:08Z-
dc.date.created2020-04-08-
dc.date.created2020-04-08-
dc.date.created2020-04-08-
dc.date.issued2020-03-
dc.identifier.citationCOMMUNICATIONS PHYSICS, v.3, no.1-
dc.identifier.issn2399-3650-
dc.identifier.urihttp://hdl.handle.net/10203/273889-
dc.description.abstractThe FeSe nematic phase has been the focus of recent research on iron-based superconductors (IBSs) due to its unusual properties, which are distinct from those of the pnic-tides. A series of theoretical/experimental studies were performed to determine the origin of the nematic phase. However, they yielded conflicting results and caused additional controversies. Here, we report the results of angle-resolved photoemission and X-ray absorption spectroscopy studies on FeSe detwinned by a piezo stack. We fully resolved band dispersions with orbital characters near the Brillouin zone (BZ) corner, and revealed an absence of any Fermi pocket at the Y point in the 1-Fe BZ. In addition, the occupation imbalance between dxz and dyz orbitals was the opposite of that of iron pnictides, consistent with the identified band characters. These results resolve issues associated with the FeSe nematic phase and shed light on the origin of the nematic phase in IBSs.-
dc.languageEnglish-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleAbsence of Y-pocket in 1-Fe Brillouin zone and reversed orbital occupation imbalance in FeSe-
dc.typeArticle-
dc.identifier.wosid000520977200001-
dc.identifier.scopusid2-s2.0-85081916617-
dc.type.rimsART-
dc.citation.volume3-
dc.citation.issue1-
dc.citation.publicationnameCOMMUNICATIONS PHYSICS-
dc.identifier.doi10.1038/s42005-020-0319-1-
dc.contributor.localauthorKim, Yeongkwan-
dc.contributor.nonIdAuthorHuh, Soonsang-
dc.contributor.nonIdAuthorSeo, Jeongjin-
dc.contributor.nonIdAuthorKim, Beom-seo-
dc.contributor.nonIdAuthorCho, S. H.-
dc.contributor.nonIdAuthorJung, Jongkeun-
dc.contributor.nonIdAuthorKim, S.-
dc.contributor.nonIdAuthorKwon, Changil-
dc.contributor.nonIdAuthorKim, Jun Sung-
dc.contributor.nonIdAuthorKoh, Yoonyoung-
dc.contributor.nonIdAuthorKyung, Wonshik-
dc.contributor.nonIdAuthorDenlinger, Jonathan D.-
dc.contributor.nonIdAuthorKim, Younghak-
dc.contributor.nonIdAuthorChae, B. N.-
dc.contributor.nonIdAuthorKim, N. D.-
dc.contributor.nonIdAuthorKim, Changyoung-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordPlusNEMATICITY-
dc.subject.keywordPlusSYMMETRY-
dc.subject.keywordPlusPHASE-
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