X-ray diffraction study on crystal structure of mn 1.8Co 0.2Sb under high magnetic fields

Hiroki Orihashi, Daisuke Mitsunaga, Masahiko Hiroi, Yoshifuru Mitsui, Kohki Takahashi, Kazuo Watanabe, Keiichi Koyama

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Measurements of magnetization, electrical resistivity and high field X-ray powder diffraction (XRD) were carried out for polycrystalline Mn 1.8Co 0.2Sb in magnetic fields up to 5 T in 4.2-300 K temperature range, in order to investigate the structural properties affected by magnetic fields. In a zero field, the compound shows the first-order magnetic transition from the ferrimagnetic (FRI) to antiferromagnetic (AFM) states at T t = 145 K with decreasing temperature. By applying magnetic fields of 5 T, T tdecreased to 60 K with thermal hysteresis of 35 K. From the XRD measurements, not only the AFM phase but also the residual FRI phase was confirmed even at 10 K in cooling process under 5 T. Results obtained indicate that the residual FRI phase is kinetically arrested.

Original languageEnglish
Pages (from-to)246-250
Number of pages5
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume76
Issue number4
DOIs
Publication statusPublished - 2012 Apr 1

Keywords

  • First order transition
  • High field X-ray powder diffraction
  • Kinetic arrest effect
  • Mn sb

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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