Specific heat of Nd1-xSrxMnO3 (x ∼ 0.5)

Takahiko Sasaki, E. Ozaki, T. Uozu, A. Tobo, Kenji Ohoyama, Y. Yamaguchi, N. Kobayashi

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

The specific heat of the single crystal of Nd1-xSrxMnO3 (x ∼ 0.5) has been measured at 20 K < T < 280 K in H < 5 T. Two specific heat anomalies are observed at TC ∼ 255 K and TN ∼ 157 K (x = 0.5) and 164 K (x = 0.5 + δ with δ ≃ 0.002). The former transition is attributed to the ferromagnetic order of Mn3+ and Mn4+ spins and the latter the charge and orbital orders at the ferromagnetic-antiferromagnetic (AF) transition. Double peak structure is seen at TN in the sample with x = 0.5 + δ, but not for x = 0.5. These two peaks are related to the phase segregation of the CE and A-type AF order phases in narrow x range of 0.5 < x < ∼0.52.

Original languageEnglish
Pages (from-to)917-920
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume63
Issue number6-8
DOIs
Publication statusPublished - 2002 Jun 1
EventProceedings of the 8th ISSP International Symposium - Tokyo, Japan
Duration: 2001 Nov 22001 Nov 5

Keywords

  • A. Oxides
  • C. Neutron scattering
  • D. Magnetic properties
  • D. Phase transitions
  • D. Specific heat

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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