WEKO3
アイテム
The Metallic State in Neutral Radical Conductors: Dimensionality, Pressure and Multiple Orbital Effects
http://hdl.handle.net/10228/00007105
http://hdl.handle.net/10228/00007105bd7febee-a84d-4016-8a2d-9ecc8097d764
| 名前 / ファイル | ライセンス | アクション |
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scunit-2018_29.pdf (4.5 MB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||
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| 公開日 | 2019-03-29 | |||||||||||||
| 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 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | The Metallic State in Neutral Radical Conductors: Dimensionality, Pressure and Multiple Orbital Effects | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 著者 |
Di, Tian
× Di, Tian× Winter, Stephen M.× Mailman, Aaron× Wong, Joanne W. L.× Yong, Wenjun× Yamaguchi, Hiroshi× Jia, Yating× Tse, John S.× Desgreniers, Serge× Secco, Richard A.× Julian, Stephen R.× Jin, Changqing× 美藤, 正樹
WEKO
1968
× Ohishi, Yasuo× Oakley, Richard T. |
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Pressure-induced changes in the solid-state structures and transport properties of three oxobenzene-bridged bisdithiazolyl radicals 2 (R = H, F, Ph) over the range 0–15 GPa are described. All three materials experience compression of their π-stacked architecture, be it (i) 1D ABABAB π-stack (R = Ph), (ii) quasi-1D slipped π-stack (R = H), or (iii) 2D brick-wall π-stack (R = F). While R = H undergoes two structural phase transitions, neither of R = F, Ph display any phase change. All three radicals order as spin-canted antiferromagnets, but spin-canted ordering is lost at pressures <1.5 GPa. At room temperature, their electrical conductivity increases rapidly with pressure, and the thermal activation energy for conduction Eact is eliminated at pressures ranging from ∼3 GPa for R = F to ∼12 GPa for R = Ph, heralding formation of a highly correlated (or bad) metallic state. For R = F, H the pressure-induced Mott insulator to metal conversion has been tracked by measurements of optical conductivity at ambient temperature and electrical resistivity at low temperature. For R = F compression to 6.2 GPa leads to a quasiquadratic temperature dependence of the resistivity over the range 5–300 K, consistent with formation of a 2D Fermi liquid state. DFT band structure calculations suggest that the ease of metallization of these radicals can be ascribed to their multiorbital character. Mixing and overlap of SOMO- and LUMO-based bands affords an increased kinetic energy stabilization of the metallic state relative to a single SOMO-based band system. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : Journal of the American Chemical Society 巻 137, 号 44, p. 14136-14148, 発行日 2015-10-29 |
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| 出版社 | ||||||||||||||
| 出版者 | American Chemical Society | |||||||||||||
| 言語 | en | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1021/jacs.5b08254 | |||||||||||||
| 日本十進分類法 | ||||||||||||||
| 主題Scheme | NDC | |||||||||||||
| 主題 | 427 | |||||||||||||
| NCID | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AA00692602 | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 1520-5126 | |||||||||||||
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| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0002-7863 | |||||||||||||
| 著作権関連情報 | ||||||||||||||
| 権利情報 | Copyright (c) 2015 American Chemical Society. This material is excerpted from a work that was published in Journal of the American Chemical Society, copyright © American Chemical Society after peer review. | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
| 査読の有無 | ||||||||||||||
| 値 | yes | |||||||||||||
| 連携ID | ||||||||||||||
| 値 | 7581 | |||||||||||||
