Enhanced specific heat jump in electron-doped CaMnO3: Spin ordering driven by charge separation

Y. Moritomo, A. Machida, E. Nishibori, M. Takata, M. Sakata

研究成果: Article査読

36 被引用数 (Scopus)

抄録

Temperature variation of the magnetic susceptibility χ, resistivity ρ, specific heat C, and lattice constants has been investigated in electron-doped CaMnO3. The parent CaMnO3 is an antiferromagnetic band insulator, and shows an insulator-metal crossover with electron doping, together with an enhanced ferromagnetic component. We have found an enhancement of the specific heat jump AC at the spin-ordering temperature Tspin and interpreted the enhancement in terms of the intrinsic charge separation.

本文言語English
論文番号214409
ページ(範囲)2144091-2144095
ページ数5
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
64
21
出版ステータスPublished - 2001 12月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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