Power generation transducer from magnetostrictive materials

In this letter, on the basis of Stoner-Wohlfarth model, the changes in magnetization of ${\text{Tb}}_{0.3}{\text{Dy}}_{0.7}{\text{Fe}}_2$ alloy have been calculated with a compressive stress along the [111] and [112] axes. The results have shown that the significant change in magnetization for ${\text{Tb}}_{0.3}{\text{Dy}}_{0.7}{\text{Fe}}_2$ alloy can be induced by the compressive stress. A feasible application of power generation floor which can convert the energy from the vibration created by a walking person on it into electric energy has been proposed, and its structure and performance also have been revealed.