Magnetic and crystallographic properties of shape memory alloys Ni 2Mn1+xSn1-x

T. Kanomata, K. Fukushima, H. Nishihara, R. Kainuma, W. Itoh, K. Oikawa, K. Ishida, K. U. Neumann, K. R.A. Ziebeck

研究成果: Conference contribution

50 被引用数 (Scopus)

抄録

X-ray powder diffraction and magnetization measurements were done on the magnetic shape memory alloys Ni2Mn1+xSn1-x. The alloys with 0≤x≲0.4 crystallize in the cubic L21 structure and exhibit the ferromagnetic behavior. X-ray diffraction patterns indicate that the excess Mn atoms occupy the Sn sites. Furthermore, magnetization measurements make clear that the Mn atoms, which substitute for Sn sites, are coupled antiferromagnetically to the ferromagnetic manganese sublattices. The alloys with 0.4≲x≤0.6 undergo a martensitic transition from the high temperature L21 structure to the orthorhombic 4O one. These alloys show a variety of magnetic transitions. A magnetic phase diagram of Ni 2Mn1+xSn1-x system is discussed qualitatively on the basis of the interatomic dependence of the exchange interactions.

本文言語English
ホスト出版物のタイトルMaterials Science Forum - Advances in Shape Memory Materials
ホスト出版物のサブタイトルMagnetic Shape Memory Alloys
出版社Trans Tech Publications Ltd
ページ119-129
ページ数11
ISBN(電子版)978-0-87849-360-9
出版ステータスPublished - 2008 1 1

出版物シリーズ

名前Materials Science Forum
583
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

ASJC Scopus subject areas

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

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