转动面内场作用下普通硬磁泡畴壁中垂直布洛赫线的消失

The Annihilation of VBLs in the Second Kind of Dumbbell Domains Under the Rotation In-plane Field

通过实验研究了转动面内场作用下普通硬磁泡(OHB)畴壁中垂直布洛赫线(VBL)的消失规律.结果发现,转动面内场作用下OHB畴壁中VBL的消失存在一个临界面内场范围[H(0)ip,Hip′],比不转动面内场时的临界面内场明显变窄,主要是由Hip′的迅速下降引起的.证明了面内场作用下VBL的最易消失方向为面内场与畴壁垂直的方向.

The annihilation of VBLs in the second kind of dumbbell domains under the rotation in-plane field are investigated experimentally.A critical in-plane field range is found under the rotation in-plane field.Compared to the critical in-plane field range which the in-plane field are always along a certain direction,the critical in-plane field range under the rotation in-plane field is narrowing.And the narrowing of the critical in-plane field was caused by the decreasing of H_(ip)′.Thus infer that there exists a direction along which the VBL in the domain walls annihilate most easily,it is the direction of the domain wall is vertical to the in-plane field.