Electrical Conductivity of Fermi Liquids. I. Many-Body Effect on the Drude Weight

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概要

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• On tlae basis of' tlae Ferrtai liqtrid tlaeory, we investig?tte the raa?ttay-body efl'ect on the Drtrdexveight. In a lattice systena the Drtrde weigl?t D is r??odified by electron-electron interactior?,xvhile it is not renornnatlized in 21 Galile;tn inxzatriant systern. This is explttined by shoxving th;ttthe efl'ective l112lSS rt't' for D x noun' is defirred throtrgh the ctrrrent, taot velocity, of' qtrasiparticle.It is shoxvn thart the ineqtn?rlity D >O is reqtuired f'or tlae st?t1rility ?xgaitast the trniforua? shif't of' theFerraai sttrf'?tce. The resttlt of j.certtrrbsttiota tlaeory atpplied ['or the Htr1o1.car'd tnodel indicates tlaatD ;as a f'trnction of' the density n is qtralitatix'ely uaaodified ar'otrrad la;rlf' filling n x 1 by Ura?kl;tj)ppro cesses .

• 社団法人日本物理学会の論文
• 1998-08-15

著者

• Okabe Takuya

  Department Of Physics Faculty Of Science Kyoto University

関連論文

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• Generalization of Gutzwiller Approximation
• Electrical Conductivity of Fermi Liquids. : II. Quasiparticle Transport
• Itinerant Ferromagnetism in Nickel
• Electrical Conductivity of Fermi Liquids. I. Many-Body Effect on the Drude Weight
• Theory on the Itinerant Ferrmagnetism in the 3d-Transition Metal System
• Hund's-Rule Coupling Effect in Itinerant Ferromagnetism : Condensed Matter and Statistical Physics
• Theoretical Studies on the Double Exchange Ferromagnet

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