Magnetoelastic domains and magnetic field-induced strains in ferromagnetic shape memory alloys by phase-field simulation
Journal
Applied Physics Letters
Journal Volume
92
Journal Issue
17
Date Issued
2008
Author(s)
Abstract
Magnetoelastic domains in ferromagnetic shape memory alloys evolve through either variant rearrangement or magnetization rotation, resulting in a large or a small magnetic field-induced strain depending on the magnitude of applied compressive stress. These phenomena are simulated in this letter using an unconventional phase-field model motivated by energy-minimizing multirank laminated domain structures. The results agree well with experiments, and confirm the analysis of Ma and Li [Appl. Phys. Lett. 90, 172504 (2007)] based on an energy minimization theory.
SDGs
Type
journal article