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

作　　者：贾莲芝[1] 封顺珍 胡海宁[2] 孙会元[1] 

机构地区：[1]河北师范大学物理学院,河北石家庄050016 [2]中国科学院物理研究所磁学国家重点实验室,北京100080

出　　处：《河北师范大学学报（自然科学版）》2004年第3期266-268,共3页Journal of Hebei Normal University：Natural Science

基　　金：国家自然科学基金资助项目(002014)

摘　　要：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.

关 键 词：转动面内场 硬磁泡畴壁 垂直布洛赫线 哑铃畴 

分 类 号：O482.5[理学—固体物理]