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Occupation switching of d orbitals in vanadium dioxide probed via hyperfine interactions
http://hdl.handle.net/2237/00032652
http://hdl.handle.net/2237/00032652f0db4213-f598-49f4-b13b-be949c8eeb7a
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-09-23 | |||||
タイトル | ||||||
タイトル | Occupation switching of d orbitals in vanadium dioxide probed via hyperfine interactions | |||||
言語 | en | |||||
著者 |
Shimizu, Yasuhiro
× Shimizu, Yasuhiro× Jin-no, Takaaki× Iwase, Fumitatsu× Itoh, Masayuki× Ueda, Yutaka |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2020 American Physical Society | |||||
抄録 | ||||||
内容記述 | Metal-insulator transition was microscopically investigated by orbital-resolved nuclear magnetic resonance (OR-NMR) spectroscopy in a single crystal of vanadium dioxide VO2. Observations of the anisotropic 51V Knight shift and the nuclear quadrupole frequency allow us to evaluate orbital-dependent spin susceptibility and d orbital occupations. The result is consistent with the degenerated t2g orbitals in a correlated metallic phase and the d orbital ordering in a nonmagnetic insulating phase. The predominant orbital pointing along the chain facilitates a spin-singlet formation triggering metal-insulator transition. The asymmetry of magnetic and electric hyperfine tensors suggests the d orbital reformation favored by a low-symmetry crystal field, forming a localized molecular orbital. The result highlights the cooperative electron correlation and electron-phonon coupling in Mott transition with orbital degrees of freedom. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Physical Society | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevB.101.245123 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 2469-9950 | |||||
書誌情報 |
en : Physical Review B 巻 101, 号 24, p. 245123, 発行日 2020-06-04 |
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著者版フラグ | ||||||
値 | publisher |