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Nonadiabatic Interaction between Electrons and Jahn-Teller Distortions in a Silicon Vacancy
http://hdl.handle.net/10191/26877
http://hdl.handle.net/10191/2687742eb6bb5-33ee-44de-b453-4cee6f6c4473
名前 / ファイル | ライセンス | アクション |
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1006.pdf (166.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-04-16 | |||||
タイトル | ||||||
タイトル | Nonadiabatic Interaction between Electrons and Jahn-Teller Distortions in a Silicon Vacancy | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Nonadiabatic Interaction between Electrons and Jahn-Teller Distortions in a Silicon Vacancy | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | silicon vacancy | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Jahn-Teller effect | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electron-phonon coupling | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | nonadiabatic effect | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electron correlation | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Yamakawa, Y.
× Yamakawa, Y.× Mitsumoto, K.× Ono, Y. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Recently, Goto et al. have discovered anomalous elastic softening due to vacancy in crystalline silicon at very low temperature. To investigate the quantum state of the silicon vacancy, we introduce a cluster model which includes the electron-lattice coupling between electrons and Jahn-Teller distortions together with the Coulomb interaction between electrons. By using the numerical diagonalization method, we take into account of both the nonadiabatic and the correlation e ects. We nd that the 3-fold orbital degeneracy in the ground state of a silicon vacancy is stable against the Jahn-Teller distortions because of the strong quantum fluctuation due to the nonadiabatic coupling between electrons and Jahn-Teller distortions. The obtained result is a striking contrast to the previous theoretical results within the adiabatic approximation and is consistent with the newly observed experiment. | |||||
書誌情報 |
Journal of Magnetism and Magnetic Materials en : Journal of Magnetism and Magnetic Materials 巻 310, 号 2, p. 993-995, 発行日 2007-03 |
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出版者 | ||||||
出版者 | Elsevier | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03048853 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00701394 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1016/j.jmmm.2006.10.414 | |||||
著者版フラグ | ||||||
値 | author |