TEM studies of domain formation mechanisms in MnV2O4

Y. Murakami, Y. Nii, T. Arima, D. Shindo, K. Yanagisawa, A. Tonomura

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Crystallographic and magnetic domains produced in a spinel-type compound MnV2O4, which exhibits a type of giant magnetostriction attributed to twin boundary motion, have been studied using transmission electron microscopy techniques. Although MnV2O4 undergoes a displacive cubic-to-tetragonal transformation upon cooling, it does not show a well-defined habit plane (i.e. the plane with a specific index that is favored for minimizing the transformation) due to the small elongation/contraction in the lattice. Electron holography demonstrates a considerable reduction in the magnetic signal by cooling the tetragonal phase to 40 K. Despite the elimination of micrometer-scale ferrimagnetic domains, weak magnetic contrast still remained, indicating small residual magnetic domains in particular portions, such as in the crosshatch of twinning pairs.

本文言語English
ページ(範囲)S731-S735
ジャーナルJournal of Alloys and Compounds
577
SUPPL. 1
DOI
出版ステータスPublished - 2013 11月 15

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

フィンガープリント

「TEM studies of domain formation mechanisms in MnV2O4」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル