X-ray powder diffraction studies of Mn3Ga0.97Al 0.03C in magnetic fields

Keiichi Koyama, Takeshi Kanomata, Tatsuo Watanabe, Takanobu Suzuki, Hironori Nishihara, Kazuo Watanabe

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have performed the X-ray powder diffraction measurements for Mn 3Ga0.97Al0.03C with a perovskite-type structure in the temperature range from 8 to 320 K in magnetic fields up to 5T, in order to investigate the structural properties affected by the magnetic field. The compound has a successive magnetic phase transition below 160 K: the ferromagnetic (F)-intermediate (I)-antiferromagnetic (AF) phases for cooling process. The lattice parameter a abruptly increases by 0.23%, accompanied by the transition from the I to AF phases at TAF-1 = 130 K. In addition, we clearly observed that magnetic field induces the I phase with small a and suppresses the AF phase with large a below TAF-1.

Original languageEnglish
Pages (from-to)492-495
Number of pages4
JournalMaterials Transactions
Volume47
Issue number3
DOIs
Publication statusPublished - 2006 Mar 1

Keywords

  • Field-induced structural transformation
  • High field x-ray diffraction
  • Magnetic phase transition
  • MnGaC

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Koyama, K., Kanomata, T., Watanabe, T., Suzuki, T., Nishihara, H., & Watanabe, K. (2006). X-ray powder diffraction studies of Mn3Ga0.97Al 0.03C in magnetic fields. Materials Transactions, 47(3), 492-495. https://doi.org/10.2320/matertrans.47.492