Simultaneous magnetooptic observation and thermomagnetic analysis of phase transitions in shape-memory Ni-Mn-Ga alloys

Oleg M. Korpusov, Rostislav M. Grechishkin, Victor V. Koledov, Victor V. Khovailo, T. Takagi, Vladimir G. Shavrov

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Direct observations of the austenite and martensite twin and magnetic domain structures are combined with thermomagnetic analysis (low-field AC susceptibility temperature measurements) of phase transitions in ferromagnetic shape memory alloys Ni2+xMn1-x Ga. Thermal hysteresis and magnetization jumps are clearly resolved by both techniques. Large Barkhausen-like jumps associated with discontinuous phase boundary and martensite twin motion are observed during the austenite-martensite transformation in contrast to the smooth ferromagnetic-paramagnetic transition near the Curie temperature.

本文言語English
ページ(範囲)2035-2037
ページ数3
ジャーナルJournal of Magnetism and Magnetic Materials
272-276
III
DOI
出版ステータスPublished - 2004 5

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Simultaneous magnetooptic observation and thermomagnetic analysis of phase transitions in shape-memory Ni-Mn-Ga alloys」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