Magnetic-field-induced strain in Ni₂MnGa melt-spun ribbons

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• 作者：Algarabel ; P.A. ; Magen ; C. ; Morellon ; L. ; Ibarra ; M.R. ; Albertini ; F. ; Magnani ; N. ; Paoluzi ; A. ; et. al.
• 关键词：75.50.Cc ; 81.30.Kf ; 62.20.Fe ; Melt-spun ribbon ; Heusler alloy ; Shape memory alloy ; Martensitic transformation ; Thermal expansion
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2004
• 期刊代码：31_03048853
• 类别：ph
• 出版时间：May, 2004
• 卷：272-276
• 期：Part 3
• 页码：2047-2048
• 文件大小：172 K

摘要

Linear thermal expansion (300–350K) and magnetostriction measurements in magnetic fields up to 15kOe have been performed on a Ni₂MnGa melt-spun ribbon. The magnetic-field-induced strain has been studied on a field-cooling process through the martensitic transformation and shows a maximum as a function of the applied field. This previously unreported behaviour is discussed.