X-ray diffraction study of the structural phase transition of Ni2MnGa alloys in high magnetic fields

Yanwei Ma, S. Awaji, K. Watanabe, M. Matsumoto, N. Kobayashi

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)

Abstract

The Ni2MnGa alloys have been systematically studied in a wide temperature range at different fields, by means of a low temperature X-ray diffraction apparatus in high magnetic fields. Using the width of the (220) diffraction peak as a measure of the degree of transformation to the low-temperature tetragonal phase, two kink anomalies in the temperature dependence of (220) peak width were detected, both on cooling and warming, between the parent and martensitic phases, corresponding to the martensitic transition-temperature (Tm) and premartensitic transition-temperature (Tp), respectively. Furthermore, effects of the magnetic field were also clearly observed.

Original languageEnglish
Pages (from-to)671-676
Number of pages6
JournalSolid State Communications
Volume113
Issue number12
DOIs
Publication statusPublished - 2000 Feb 25

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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