论文信息 - Direct observation of giant Barkhausen jumps in magnetic microwires

Direct observation of giant Barkhausen jumps in magnetic microwires

Magnetization reversal induced by a circular magnetic field has been studied using the magneto-optical Kerr effect in magnetic microwires. The visualization of the classical effect of a giant Barkhausen jump is reported in a magnetic microwire. It was directly confirmed that the surface giant Barkhausen jump consists of the nucleation of a single circular domain followed by the long distance quick motion of the solitary circular domain walls.

[1] K. Kułakowski,et al. Relation between surface magnetization reversal and magnetoimpedance in Co-rich amorphous microwires , 2008 .

[2] N. A. Usov,et al. Local nucleation fields of Fe-rich microwires and their dependence on applied stresses , 2008 .

[3] A. Zhukov,et al. Magnetization reversal and magnetic domain structure in glass-covered Co-rich microwires in presence of tensile stress , 2004 .

[4] Gang Xiong,et al. Magnetic domain-wall dynamics in a submicrometre ferromagnetic structure , 2003, Nature materials.

[5] A. Zhukov,et al. Circular magnetic bistability induced by tensile stress in glass-covered amorphous microwires , 2003 .

[6] M. Vázquez,et al. Soft magnetic wires , 2001 .

[7] M. Vázquez,et al. Stress- and annealing-dependent magnetic properties of amorphous wires , 1990 .

[8] L. Tonks,et al. Further Experiments on the Propagation of Large Barkhausen Discontinuities , 1932 .