Theoretical Studies on the Double Exchange Ferromagnet

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概要

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• Based on the double exchange mechanism, a model for ferromagnet La_<1-x>M_xMnO_3 (M=Ca^<2+>, Sr^<2+>, Ba^<2+>, or Pb^<2+>) is developed. Our theory can well describe several features such as the crossing behaviour of the magnetization curve for different composition x and the steep increase of resistivity around T_c. We use only one free parameter, the e_g-derived band width W〜0.5 eV. The Curie temperature T_c is shown as a function of x.

• 社団法人日本物理学会の論文
• 1995-09-15

著者

• Okabe Takuya

  Department Of Physics Faculty Of Science Kyoto University

関連論文

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• 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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