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  1. 050 理学部
  2. 10 学術雑誌論文
  3. 10 査読済論文
  1. 0 資料タイプ別
  2. 01 学術雑誌論文

Mott transition in correlated electron systems with orbital degree of freedom

http://hdl.handle.net/10191/1147
http://hdl.handle.net/10191/1147
677a5392-0d31-4aae-b47f-ee2da79661d8
名前 / ファイル ライセンス アクション
19_0007.pdf 19_0007.pdf (236.3 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-04-23
タイトル
タイトル Mott transition in correlated electron systems with orbital degree of freedom
タイトル
言語 en
タイトル Mott transition in correlated electron systems with orbital degree of freedom
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 Ono, Yoshiaki

× Ono, Yoshiaki

WEKO 62

Ono, Yoshiaki

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Ralf, Bulla

× Ralf, Bulla

WEKO 7688

Ralf, Bulla

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Michael, Potthoff

× Michael, Potthoff

WEKO 7689

Michael, Potthoff

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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 Mott metal-insulator transitions in an M-fold orbitally degenerate Hubbard model are studied by means of a generalization of the linearized dynamical mean-field theory. The method allows for an efficient and reliable determination of the critical interaction Uc for any integer filling n and different M at zero temperature. For half-filling a linear dependence of Uc on M is found. Inclusion of the (full) Hund's rule exchange J results in a strong reduction of Uc. The transition turns out to change qualitatively from continuous for J=0 to discontinuous for any finite J. This result is confirmed using the exact-diagonalization method for M=2.
書誌情報 Physical Review B
en : Physical Review B

巻 67, p. 035119-1-035119-6, 発行日 2003
出版者
出版者 American Physical Society
ISSN
収録物識別子タイプ ISSN
収録物識別子 10980121
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA11187113
DOI
識別子タイプ DOI
関連識別子 info:doi/10.1103/PhysRevB.67.035119
権利
権利情報 The American Physical Society
著者版フラグ
値 author
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