Paper Title:

Effect of External Fields on the Martensitic Transformation in Ni-Mn Based Heusler Alloys

Periodical Advanced Materials Research (Volume 52)
Main Theme Ferromagnetic Shape Memory Alloys
Edited by Lluis Mañosa, P.K. Mukhopadhyay and S.R. Barman
Pages 189-197
DOI 10.4028/www.scientific.net/AMR.52.189
Citation Xavier Moya et al., 2008, Advanced Materials Research, 52, 189
Online since June, 2008
Authors Xavier Moya, Lluís Mañosa, Antoni Planes, Seda Aksoy, Mehmet Acet, Eberhard F. Wassermann, Thorsten Krenke
Keywords Ferromagnetism, Field-Induced Transformation, Heusler Alloy, Shape Memory Alloy Actuator
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Abstract

In this paper, we discuss the possibility of inducing a martensitic transition by means of an applied magnetic field or hydrostatic pressure in Ni-Mn based Heusler shape memory alloys. We report on the shift of the martensitic transition temperatures with applied magnetic field and applied pressure and we show that it is possible to induce the structural transformation in a Ni50Mn34In16 alloy by means of both external fields due to: (i) the low value of the entropy change and (ii) the large change of magnetization and volume, which occur at the martensitic transition.