温度和面内场联合作用下软畴段的行为  

The Behavior of Soft Segments Subjected to Both Temperature and in-plane Field

作　　者：顾建军[1] 李春光[1] 岂云开[1] 郑文礼[1] 孙会元[2] 

机构地区：[1]河北省承德民族师范高等专科学校物理系,河北承德067000 [2]河北师范大学物理科学与信息工程学院,河北石家庄050016

出　　处：《四川师范大学学报（自然科学版）》2009年第6期786-789,共4页Journal of Sichuan Normal University（Natural Science）

基　　金：国家自然科学基金(10274018);河北省教育厅科研基金(Z2007422)资助项目;河北师范大学重点科研基金(120203)的资助

摘　　要：实验研究了温度和面内场共同作用下软畴段的行为.实验发现:面内场对软畴段的条泡转变场Hsb和软泡缩灭场H0有很大影响,而且Hsb和H0的变化与晶向有关.比较不同温度下、不同晶向上的结果,得到了与磁泡参量相关的分界面内场(Hip)d,不同温度下的软畴段对应着不同的(Hip)d,而且(Hip)d随着温度的升高而降低,在低温下,分界面内场(Hip)d是饱和磁化强度4πMs的2倍.The behavior of soft segments subjected to both temperature and in-plane field was experimentally studied. It was found that in-plane field Hip greatly affects the stripe-to-bubble transition field of soft domain segments Hsb and the collapse field of soft bubbles H0 , and the changes of Hsb and H0 are related to the crystal orientation. Comparing the results for different crystal orientations and different temperatures, the authors obtained a dividing in-plane field （Hip）d related to the magnetic bubble parameters. The soft segments at different temperatures were responding to different （Hip）d. And the value of the dividing in-plane field decreased with increase of the temperature. （ Hip ）d is about two times of the saturated magnetization 4-πMs at low temperatures.

关 键 词：软畴段 分界面内场 垂直布洛赫线 

分 类 号：O482.51[理学—固体物理]