Specific heat of EuIn2P2 at high magnetic fields

Hiroyuki Hidaka, Yoichi Ikeda, Ikuto Kawasaki, Tatsuya Yanagisawa, Hiroshi Amitsuka

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We have carried out specific heat measurements on EuIn2P2 at high magnetic fields perpendicular to the c-axis in the hexagonal crystal structure in order to understand its thermal properties. The temperature dependence of the specific heat exhibits a clear λ-type anomaly due to a magnetic transition at TC = 24 K, indicating that the magnetic transition is of second-order. The λ-type anomaly becomes markedly broader with increasing the magnetic field. This remarkable field-dependence is consistent with the results of previous magnetization measurements which suggest that Eu2 + magnetic moments align ferromagnetically perpendicular to the c-axis below TC. In addition, a hump in the specific heat is observed around 7 K, which can be ascribed to the Zeeman splitting of the Eu2 + multiplet by internal magnetic fields.

Original languageEnglish
Pages (from-to)3005-3007
Number of pages3
JournalPhysica B: Condensed Matter
Volume404
Issue number19
DOIs
Publication statusPublished - 2009 Oct 15

Keywords

  • Eu multiplet
  • EuInP
  • Specific heat

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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