Free Access
Issue
J. Phys. IV France
Volume 11, Number PR8, Novembre 2001
Fifth European Symposium on Martensitic Transformations and Shape Memory Alloys
Page(s) Pr8-257 - Pr8-262
DOI https://doi.org/10.1051/jp4:2001844
Fifth European Symposium on Martensitic Transformations and Shape Memory Alloys

J. Phys. IV France 11 (2001) Pr8-257-Pr8-262

DOI: 10.1051/jp4:2001844

Effect of a magnetic field on the martensitic transition of Cu-Al-Mn alloys

J. Marcos1, A. Planes1, L.I. Manosa1, A. Labarta2 and B.J. Hattink2

1  Departament d'Estructura i Constituents de la Matèria, Facultat de Fisica, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Catalonia, Spain
2  Departament de Fisica Fonamental, Facultat de Fisica, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Catalonia, Spain


Abstract
We study the effect of a magnetic field on the martensitic transition of a Cu-Al-Mn shape memory alloy. We present resistance measurements through the martensitic transition under applied magnetic fields ranging from 0 to 50 kOe. Results show that while the onset of the transformation is only slightly affected by the magnetic field, the extension in temperature of the transition is significantly reduced upon increasing the field. This finding reflects the existence of magnetoelastic coupling at a mesoscopic scale between magnetic and structural domains.



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