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A continuous metal-insulator transition driven by spin correlations
https://oist.repo.nii.ac.jp/records/2173
https://oist.repo.nii.ac.jp/records/2173387182c2-3061-4d10-8e8b-f4f9ba656582
名前 / ファイル | ライセンス | アクション |
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Feng-2021-A continuous metal-insulator transit (940.6 kB)
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Creative Commons Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-07-14 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A continuous metal-insulator transition driven by spin correlations | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Feng, Yejun
× Feng, Yejun× Wang, Yishu× Silevitch, D. M.× Cooper, S. E.× Mandrus, D.× Lee, Patrick A.× Rosenbaum, T. F. |
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書誌情報 |
en : Nature Communications 巻 12, 号 1, p. 2779, 発行日 2021-05-13 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | While Mott insulators induced by Coulomb interactions are a well-recognized class of metal-insulator transitions, insulators purely driven by spin correlations are much less common, as the reduced energy scale often invites competition from other degrees of freedom. Here, we demonstrate a clean example of a spin-correlation-driven metal-insulator transition in the all-in-all-out pyrochlore antiferromagnet Cd₂Os₂O₇, where the lattice symmetry is preserved by the antiferromagnetism. After the antisymmetric linear magnetoresistance from conductive, ferromagnetic domain walls is removed experimentally, the bulk Hall coefficient reveals four Fermi surfaces of both electron and hole types, sequentially departing the Fermi level with decreasing temperature below the Neel temperature, TN = 227 K. In Cd₂Os₂O₇, the charge gap of a continuous metal-insulator transition opens only at T ~ 10 K << TN. The insulating mechanism parallels the Slater picture, but without a folded Brillouin zone, and contrasts sharply with Mott insulators and spin density waves, where the electronic gap opens above and at TN, respectively. | |||||
出版者 | ||||||
出版者 | Nature Portfolio | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2041-1723 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/33986275 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1038/s41467-021-23039-6 | |||||
権利 | ||||||
権利情報 | © 2021 The Author(s). | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.nature.com/articles/s41467-021-23039-6 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |