J. Phys. IV France
Volume 112, October 2003
Page(s) 981 - 984

J. Phys. IV France
112 (2003) 981
DOI: 10.1051/jp4:20031045

Magnetic shape memory - Mechanism, modeling principles and their application to Ni-Mn-Ga

A.A. Likhachev, A. Sozinov and K. Ullakko

Helsinki University of Technology, Department of Engineering Physics and Mathematics, Rakentajankio 2C, 02150 Espoo, Finland

This article briefly summarizes the mechanism of magnetic shape memory, main modeling principes and most important information about the main structural, magnetic and mechanical properties related to a family of non-stoichiometric Ni-Mn-Ga alloys. Depending on the martensite crystal structure these alloys are able to show a really giant (about 6% or 11%) strain response in a magnetic field less than 1 T.

© EDP Sciences 2003