Evidence of multiple phase transitions in single-crystalline CuO by DSC heat capacity measurement

X. G. Zheng, T. Kawae, S. Tanaka, M. Suzuki, C. N. Xu

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

Heat capacity measurements were carried out on single-crystalline CuO in the temperature range 130-300 K. Sharp peaks corresponding to the antiferromagnetic transitions were clearly observed at 211 and 227 K. At the low-temperature end, near 160 K, a wide peak in the heat capacity signal was also demonstrated. An electric anomaly was observed in the temperature range 150-160 K, which strongly suggests the possibility of a new low-temperature phase transition in CuO. This study also indicates that DSC measurement is an effective tool to detect magnetic transitions and probe subtle phase transitions in solids.

Original languageEnglish
Pages (from-to)853-858
Number of pages6
JournalJournal of Thermal Analysis and Calorimetry
Volume57
Issue number3
Publication statusPublished - 1999
EventProceedings of the 1998 International Symposium on New Frontier of Thermal Studies of Materials - Yokohama, Jpn
Duration: Oct 26 1998Oct 27 1998

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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