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

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

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


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.

Original languageEnglish
Article number214409
Pages (from-to)2144091-2144095
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number21
Publication statusPublished - 2001 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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