| 直流偏场和面内场联合作用下第Ⅰ类哑铃畴壁内VBLs的稳定性 |
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| 引用本文： | 王丽娜,吴佺,聂向富,郭革新.直流偏场和面内场联合作用下第Ⅰ类哑铃畴壁内VBLs的稳定性[J].河北师范大学学报(自然科学版),2005,29(4):354-356. |
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| 作者姓名： | 王丽娜 吴佺 聂向富 郭革新 |
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| 作者单位： | 河北师范大学,物理学院,河北,石家庄,050016;河北师范大学,物理学院,河北,石家庄,050016;河北建筑工程学院,成人教育学院,河北,张家口,075024 |
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| 基金项目： | 国家自然科学基金资助项目(10274018) |
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| 摘 要： | 研究了直流偏场和面内场联合作用下,液相外延石榴石磁泡膜中第Ⅰ类哑铃畴(ID)畴壁中垂直布洛赫线(VBL)的稳定性.发现,室温时在Hb和Hip的共同作用下,当Hb>H′sb时,ID的剩余率将在某一面内场Hip下迅速下降,即ID畴壁内VBL在某一Hip迅速丢失.随着Hb上升这种下降的趋势越容易发生,并变得更剧烈.通过观察证实,这种下降的趋势与ID的自收缩有关.由此可知,在Hip和Hb的共同作用下ID畴壁中的VBLs丢失的过程中,自收缩起着重要的作用.
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| 关 键 词： | 垂直布洛赫线 第Ⅰ类哑铃畴 直流偏场 面内场 |
| 文章编号： | 1000-5854(2005)04-0354-03 |
| 修稿时间： | 2004年12月1日 |
Stability of First Kind of Dumbbell Domains Subjected to an In-plane Field at Different Bias Fields |
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| WANG Li-na,WU Quan,NIE Xiang-fu,GUO Ge-xin.Stability of First Kind of Dumbbell Domains Subjected to an In-plane Field at Different Bias Fields[J].Journal of Hebei Normal University,2005,29(4):354-356. |
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| Authors: | WANG Li-na WU Quan NIE Xiang-fu GUO Ge-xin |
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| Institution: | WANG Li-na~1,WU Quan~ |
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| Abstract: | The softening process of the first kind of dumbbell domains (IDs) in garnet bubble films subjected to an in-plane field H_(ip) at different static bias field H_b was studied experimentally.It found that when H_b is larger,the remaining percentage of ID,R_(ID),drops sharply at a certain H_(ip),and with the increase of H_b the drop occurs at lower H_(ip) and becomes more intensive.It has been confirmed that this related to the "spontaneous-shrink" of IDs,which plays an important role in the breakdown of vertical Bloch line chains of IDs subjected to joint fields H_b and H_(ip). |
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| Keywords: | vertical-Bloch-line the first kind of hard dumbbell domains static bias field in-plane field |
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