Enhanced specific heat jump in electron-doped (formula presented) Spin ordering driven by charge separation

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

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Temperature variation of the magnetic susceptibility χ, resistivity ρ, specific heat C, and lattice constants has been investigated in electron-doped (formula presented) The parent (formula presented) 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 (formula presented) at the spin-ordering temperature (formula presented) and interpreted the enhancement in terms of the intrinsic charge separation.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number21
DOIs
Publication statusPublished - 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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