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Effect of the spin-orbit interaction and the electron phonon coupling on the electronic state in a silicon vacancy
http://hdl.handle.net/10191/26892
http://hdl.handle.net/10191/268929509e90f-05bc-4c90-8c4d-5101a93df1c1
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
988.pdf (95.0 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-04-16 | |||||
| タイトル | ||||||
| タイトル | Effect of the spin-orbit interaction and the electron phonon coupling on the electronic state in a silicon vacancy | |||||
| タイトル | ||||||
| タイトル | Effect of the spin-orbit interaction and the electron phonon coupling on the electronic state in a silicon vacancy | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 著者 |
Yamada, Takemi
× Yamada, Takemi× Yamakawa, Youichi× Ono, Yoshiaki |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The electronic state around a single vacancy in silicon crystal is investigated by using the Green's function approach. The triply degenerate charge states are found to be widely extended and account for extremely large elastic softening at low temperature as observed in recent ultrasonic experiments. When we include the LS coupling λSi on each Si atom, the 6-fold spin-orbital degeneracy for the V+ state with the valence +1 and spin 1/2 splits into Γ doublet groundstates and Γ8 quartet excited states with a reduced excited energy of O(λSi/10). We also consider the effect of couplings between electrons and Jahn-Teller phonons in the dangling bonds within the second order perturbation and find that the groundstate becomes Γ8 quartet which is responsible for the magnetic-field suppression of the softening in B-doped silicon. | |||||
| 書誌情報 |
Journal of Physics: Conference Series en : Journal of Physics: Conference Series 巻 200, 号 1, p. 012228-1-012228-4, 発行日 2010-02 |
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| 出版者 | ||||||
| 出版者 | IOP Publishing | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 17426588 | |||||
| 書誌レコードID | ||||||
| 識別子タイプ | NCID | |||||
| 関連識別子 | BA87701391 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1088/1742-6596/200/1/012228 | |||||
| 著者版フラグ | ||||||
| 値 | author | |||||
