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.
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).
出处
《河北师范大学学报（自然科学版）》
CAS
北大核心
2005年第4期354-356,共3页
Journal of Hebei Normal University：Natural Science
基金
国家自然科学基金资助项目(10274018)
关键词
垂直布洛赫线
第Ⅰ类哑铃畴
直流偏场
面内场
vertical-Bloch-line
the first kind of hard dumbbell domains
static bias field
in-plane field
