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Dynamics of ethylene groups and hyperfine interactions between donor and anion molecules in λ-type organic conductors studied by ⁶⁹,⁷¹Ga-NMR spectroscopy
https://sucra.repo.nii.ac.jp/records/19769
https://sucra.repo.nii.ac.jp/records/19769aab078d0-2251-44fa-a569-4894e5df59da
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
A3000471.pdf (980.6 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2022-12-06 | |||||
| タイトル | ||||||
| タイトル | Dynamics of ethylene groups and hyperfine interactions between donor and anion molecules in λ-type organic conductors studied by ⁶⁹,⁷¹Ga-NMR spectroscopy | |||||
| 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 |
YASUMURA, N.
× YASUMURA, N.× 小林, 拓矢× TANIGUCHI, H.× FUKUOKA, S.× KAWAMOTO, A. |
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| 著者 ローマ字 | ||||||
| 値 | KOBAYASHI, T. | |||||
| 著者 所属(別言語) | ||||||
| 値 | Graduate School of Science and Engineering, Saitama University | |||||
| 著者 所属(別言語) | ||||||
| 値 | Graduate School of Science and Engineering, Saitama University, Research and Development Bureau, Saitama University | |||||
| 著者 所属(別言語) | ||||||
| 値 | Graduate School of Science and Engineering, Saitama University | |||||
| 著者 所属(別言語) | ||||||
| 値 | Department of Condensed Matter Physics, Graduate School of Science, Hokkaido University | |||||
| 著者 所属(別言語) | ||||||
| 値 | Department of Condensed Matter Physics, Graduate School of Science, Hokkaido University | |||||
| 書誌情報 |
Physical Review B 巻 106, 号 24, p. 245103-1-245103-9, 発行日 2022 |
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| 年月次 | ||||||
| 値 | 2022 | |||||
| 出版者名 | ||||||
| 出版者 | The American Physical Society | |||||
| 収録物識別子 | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 10980121 / 1550235X | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1103/PhysRevB.106.245103 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We present the results of ⁶⁹,⁷¹Ga-NMR measurements on an organic antiferromagnet λ-(BEDSe-TTF)₂GaCl₄ [BEDSe-TTF=bis(ethylenediseleno)tetrathiafulvalene], with comparison to reports on λ-(BETS)₂GaCl₄ [BETS=bis(ethylenedithio)tetraselenafulvalene] [T. Kobayashi et al., Phys. Rev.B 102, 235131 (2020)]. We found that the dynamics of two crystallographically independent ethylene groups induce two types of quadrupolar relaxation in the high-temperature region. As the ethylene motion freezes, hyperfine (HF) interactions develop between π spin and Ga nuclear spin below 100 K, and thereby magnetic fluctuations of the π-spin system are detected even from the Ga site. The HF interaction in λ-(BETS)₂GaCl₄ was more than twice as large as in λ-(BEDSe-TTF)₂GaCl₄, implying that the short contacts between Cl atoms and the chalcogens of fulvalene part are essential for the transferred HF interaction. We propose that NMR using nuclei in anion layers is useful for studying interlayer interactions in organic conductors, which have not been studied experimentally. In addition, because the mechanism of the transferred HF interaction is considered to be the same as π–d interaction in isostructural Fe-containing λ-type salts, our findings aid in the understanding of their physical properties. | |||||
| 注記 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Copyright notice(c)2022 American Physical Society. All rights reserved. Publisher's version: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.106.245103 |
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| 版 | ||||||
| 値 | [著者版] | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | text | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 作成日 | ||||||
| 日付 | 2022-12-06 | |||||
| 日付タイプ | Created | |||||
| アイテムID | ||||||
| 値 | A3000471 | |||||
