Magnetic Properties of Co73Fe4Si12B11 Ferromagnetic Microwires in Amorphous and Crystalline State
摘要
Abstract
We studied the magnetic properties of Co73Fe4Si12B11 ferromagnetic microwires in initial amorphous and crystalline state achieved by thermal treatment with direct current. A microwire in amorphous state is found to be characterized with quasilinear hysteresis loop with small coercive force less than 0.05 kA/m. Once crystallized, the microwire loses its soft magnetic properties, its hysteresis loop radically expands, and the coercive force becomes equal to 15 kA/m.