Ward-Takahashi Identities in Itinerant Electron Ferromagnetism.I : Zero Temperature Case
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概要
- 論文の詳細を見る
A systematic calculation of the Ward-Takahashi identities in itinerant electron ferronmognetism is presented by making use of the functional integral method. The 1/h-singularity of the magnon Green's function for vanishing energy and momentum plays the significant role. Here h denotes a fictitious infinitesimal magnetic field applied to the system. The identities for the multi point vertex functions corresponding to the processes in which the electron, magnon and longitudinal spin fluctuation interact are given. The electron and magnon pole term contributions to these identities are discussed.
- 理論物理学刊行会の論文
- 1979-04-25
著者
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Tachiki Masashi
The Research Institute For Iron Steel And Other Metals
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MATSUMOTO Hideki
Institute for Materials Research, Tohoku University
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SEKI Seiichi
Department of Physics, Saitama University
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Seki Seiichi
The Research Institute For Iron Steel And Other Metals
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Matsumoto Hideki
Department Applied Physics Seikei University:(present Address)institute Of Physics University Of Tsu
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Matsumoto Hideki
Department Of Physics University Of Alberta
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Matsumoto Hideki
Dipartimento Di Fisica Teorica E Sue Metodologie Per Le Scienze Applicate Universita Di Salermo
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UMEZAWA Hiromi
Department of Physics, University of Alberta
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Umezawa Hiromi
Department Of Physics University Of Alberta
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MATSUMOTO Hideki
Applied Physics, Seikei University
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MATSUMOTO Hideki
Department of Applied Physics, Seikei University:(Present address)Institute of Physics,Univ. of Tsukuba
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MATSUMOTO Hideki
Department of Physics, University of Alberta
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MATSUMOTO Hideki
Department of Physics, University of Alberta, Edmonton, Alberta
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Tachiki Masashi
Institute for Materials Research, Tohoku University
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TACHIKI Masashi
The Research Institute for Iron, Steel and Other Metals Tohoku University
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