直流偏磁场作用下VBL消失机制探讨

Study in The Mechanism of The Annihilation of The VBL Subjected to An Static Bias Field

以实验为依据，在Ｔｈｉｅｌｅ磁泡静力学理论和垂直布洛赫线均匀旋转模型的基础上，通过对畴壁能进行修正，研究了直流偏磁场作用下泡状硬磁畴的条泡转变和缩灭问题，从能量表达式出发算出了硬磁畴的缩灭场和最大缩灭场，并首次解释了第二类哑铃畴以条畴形态缩灭的现象。从而系统地解释了这些多年来未能解释的实验现象。

The collapse field and the stripe-to-bubble transition phenomema of the hard bubble domains were studied,modified domain wall energy by experiment rerults.From the energy expression,the collapse field and the maximum collapse field of the hard domains were computed,and the phenomenon of that the second kind of dumbbell domains collapse by stripe shape were explained quanlitatively.These phnomena which could not be explained for years were explained firstly.