fig2
Figure 2. (A) Schematic of the eight easy axes in the (Tb-Dy)Fe2 single crystals. (B) 3D domain structures of Terfenol-D[56]. (C) Dynamic evolution of 109° and 71° domain walls under external fields[85]. (D) Simulated magnetization (strain) responses and typical domain structures of twinned Terfenol-D crystal in three different cases: (i) non-interacting domains with magnetization rotation only; (ii) magnetically but not elastically interacting domains with both magnetization rotation and domain wall motion; and (iii) taking into account all energy contributions and allowing magnetization to evolve freely[40].
