The thermal expansion coefficient and volume magnetostriction of Heusler Ni2MnGa alloys

V. D. Buchelnikov, V. V. Khovailo, T. Takagi

研究成果: ジャーナルへの寄稿会議記事査読

29 被引用数 (Scopus)

抄録

In this work the thermal expansion coefficient of Ni2MnGa alloy was experimentally determined. It was shown that the thermal expansion coefficient has a peak at the point of magnetic phase transition. The value of thermal expansion coefficient jump at Curie point is Δκ=1. 8×10-5 K-1. From the phenomenological Ginzburg-Landau theory of a magnetic second-order phase transition the expression for a jump of thermal expansion coefficient in Curie point was obtained. From the comparison of experimental and theoretical jumps of thermal expansion the value of volume magnetostriction for Ni2MnGa alloy was determined: B1≈20×109 erg/cm3.

本文言語英語
ページ(範囲)e459-e461
ジャーナルJournal of Magnetism and Magnetic Materials
300
1
DOI
出版ステータス出版済み - 2006 5月
イベントThird International Symposium on Magnetism 2005 -
継続期間: 2005 6月 262005 6月 30

フィンガープリント

「The thermal expansion coefficient and volume magnetostriction of Heusler Ni2MnGa 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