High field X-ray diffraction studies on magnetic refrigerants

Keiichi Koyama, Fumihiro Ishikawa, Kazuo Watanabe

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this paper, we review our recent results on magnetic refrigerants MnAs1-xSbx and MnFeAs0.5P0.5 by powder X-ray diffraction measurements in fields up to 5 T and in the temperature range from 8 to 320 K. MnAs shows a first-ordered structural transition with the volume expansion of 2.1% accompanied by a metamagnetic transition, but MnAs0.9Sb0.1 exhibits an isostructural transition with the volume expansion of 1.1%. The cell volume of MnFeAs0.5P 0.5 slightly (-0.4%) and continuously decreases with increasing a magnetic field through the metamagnetic transition.

Original languageEnglish
Pages (from-to)153-163
Number of pages11
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume23
Issue number3-4
Publication statusPublished - 2006 Sep 25

Keywords

  • Field-induced phase transition
  • High field X-ray diffraction
  • Magnetic refrigerant
  • Magnetovolume effect

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'High field X-ray diffraction studies on magnetic refrigerants'. Together they form a unique fingerprint.

Cite this