Anomalous magnetic phase diagram of CeTe under high pressure

Hiroaki Takaguchi, Yuya Hayashi, Takeshi Matsumura, Kazunori Umeo, Masafumi Sera, Akira Ochiai

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have investigated the anomalous ordered phase of CeTe under high pressure, which has been suggested to be an antiferroquadrupole ordered phase. An anisotropic magnetic phase diagram has been obtained from magnetization and specific heat measurements for the three main field directions along [100], [110], and [111]. We discuss the magnetic phase diagram using a two-sublattice mean-field calculation including antiferromagnetic and antiferroquadrupolar interactions. The anomalous ordered phase can be interpreted as an antiferromagnetic ordered phase, which is strongly affected by the antiferroquadrupolar interaction through the off-diagonal matrix element between the F7 crystal-field ground state and the F8 excited state.

Original languageEnglish
Number of pages1
Journaljournal of the physical society of japan
Volume84
Issue number4
DOIs
Publication statusPublished - 2015 Apr 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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