Magnetic properties of Mn-rich Pd2MnSn Heusler alloys

T. Kanomata, K. Endo, Y. Chieda, T. Sugawara, K. Obara, T. Shishido, K. Matsubayashi, Y. Uwatoko, H. Nishihara, R. Y. Umetsu, M. Nagasako, R. Kainuma

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Pd2Mn1+xSn1-x (0 ≤ x ≤ 0.30) alloys crystallize in the cubic L21 structure. The lattice parameter a decreases linearly with increasing Mn concentration x. X-ray powder diffraction patterns indicate that the excess Mn atoms occupy the vacant Sn sites. All alloys exhibit the ferromagnetic behavior. The pressure change of the magnetic moment per formula unit at 5 K for Pd2MnSn is independent of pressure. The Curie temperature of Pd2Mn1+xSn 1-x (0 ≤ x ≤ 0.30) alloys increases linearly with increasing x. Magnetization measurements make clear that the magnetic moment of Mn atoms, which substitute for Sn sites, is coupled antiferromagnetically to the magnetic moment of Mn atoms on the ferromagnetic Mn sublattice.

Original languageEnglish
Pages (from-to)29-33
Number of pages5
JournalJournal of Alloys and Compounds
Volume505
Issue number1
DOIs
Publication statusPublished - 2010 Aug 27

Keywords

  • Curie temperature
  • Exchange interaction
  • Heusler alloy
  • Magnetic moment
  • Pressure effect

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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