Phase transitions in the pseudo-binary compounds Ho1-xTb xB2C2

Kaihei Ido, Hideya Onodera, Kenji Ohoyama, Aya Tobo, Yasuo Yamaguchi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We have performed specific heat experiments on Ho1-xTb xB2C2 (0≤x≤1.0) in order to clarify the similarity and difference between anomalous antiferromagnetic phases of H0B 2C2 and TDB2C2. H0B 2C2 undergoes an antiferromagnetic (AFM) transition at TN= 5.9 K and an an- tiferroquadrupolar (AFQ) transition at T Q= 4.5 K. TDB2C2 shows only an AFM transition at TN= 21.7 K. Although TN changes gradually with increasing x, TQ hardly decreases up to x = 0.6. This unusual result indicates that the Tb atoms seem to support the AFQ order in H0B 2C2. However, judging from an entropy change at T Q, it is supposed that the Tb atoms do not participate in the AFQ order.

Original languageEnglish
Pages (from-to)83-84
Number of pages2
Journaljournal of the physical society of japan
Volume71
Issue numberSUPPL.
DOIs
Publication statusPublished - 2002 Jan 1

Keywords

  • Antiferromagnetic transition
  • Antiferroquadrupolar transition
  • HoBC TDBC
  • Phase diagram

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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