fig6

Figure 6. (A) Domain evolution of Fe-Ga in the presence of both elastic energy and magnetostatic energy: (a) 4,000 steps; (b) 40,000 steps; (c) 200,000 steps; (d) 500,000 steps. (e) The field dependence of magnetostriction with different pre-stress applied[56]. (B) The matrix distortion along [100] direction with a parallel saturation magnetic field in (a) Fe-Ga and (b) Fe-Ga-La alloys, respectively. (c) Re-magnetization process along the easy axis direction. The re-magnetization is realized in Fe-Ga-La by domain wall motion rather than by domain rotation[99].