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Ferromagnetism and Superconductivity in the Multi-orbital Hubbard Model : Hund's Rule Coupling versus Crystal-Field Splitting
http://hdl.handle.net/10191/1153
http://hdl.handle.net/10191/11536223733d-11c2-4ee3-932a-425f2f4a3673
名前 / ファイル | ライセンス | アクション |
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19_0001.pdf (275.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-04-23 | |||||
タイトル | ||||||
タイトル | Ferromagnetism and Superconductivity in the Multi-orbital Hubbard Model : Hund's Rule Coupling versus Crystal-Field Splitting | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Ferromagnetism and Superconductivity in the Multi-orbital Hubbard Model : Hund's Rule Coupling versus Crystal-Field Splitting | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electronic structure | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ferromagnetism | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | superconductivity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Luttinger liquid | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Hubbard model | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Sano, Kazuhiro
× Sano, Kazuhiro× Ono, Yoshiaki |
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著者別名 | ||||||
識別子 | 62 | |||||
識別子Scheme | WEKO | |||||
姓名 | 大野, 義章 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The multi-orbital Hubbard model in one dimension is studied using the numerical diagonalization method. Due to the effect of crystal-field splitting △, the fully polarized ferromagnetism, which is observed in the strong coupling regime, becomes unstable against the partially polarized ferromagnetism when Hund's rule coupling J is smaller than a certain critical value of order of △. In the vicinity of the partially polarized ferromagnetism, the orbital fluctuation develops due to the competition between Hund's rule coupling and crystal-field splitting. The superconducting phase with the Luttinger liquid parameter K_ρ> 1 is observed for the singlet ground state in this region.. | |||||
書誌情報 |
Journal of the Physical Society of Japan en : Journal of the Physical Society of Japan 巻 72, p. 1847-1850, 発行日 2003-08 |
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出版者 | ||||||
出版者 | The Physical Society of Japan | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00319015 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00704814 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1143/JPSJ.72.1847 | |||||
権利 | ||||||
権利情報 | The Physical Society of Japan | |||||
著者版フラグ | ||||||
値 | author |