Eur. Phys. J. B 27, 55-62 (2002)
https://doi.org/10.1140/epjb/e20020129

A phenomenological theory of giant magnetoelastic response in martensite

¹ Department of Radiophysics, Taras Shevchenko University, Glushkov str. 2, 03022 Kiev-22, Ukraine
² Institute for Magnetism, Ukrainian Academy of Sciences, Vernadskii str. 36, 03142 Kiev-142, Ukraine

Corresponding author: ^a victorlvov@svitonline.com

Received: 18 November 2001
Revised: 26 January 2002
Published online: 15 May 2002

Abstract

The interrelation between the giant magnetoelastic response and the superelastic or/and rubber-like behavior of a martensitic alloy is substantiated. The equivalence principle for the mechanical and magnetoelastic stresses is formulated and then used for the quantitative theoretical description of the field-induced deformation of martensite. Two different orientations of the magnetic field with respect to the crystal axes are considered. The agreement between the theoretical and experimental field dependencies of the deformation is achieved.