COLLECTIVE TRANSPORT AND SHEAR-FLOW OF MAGNETIC-BUBBLE ARRAYS

被引:8
作者
SESHADRI, R
WESTERVELT, RM
机构
[1] HARVARD UNIV,DIV APPL SCI,CAMBRIDGE,MA 02138
[2] HARVARD UNIV,DEPT PHYS,CAMBRIDGE,MA 02138
来源
PHYSICAL REVIEW B | 1993年 / 47卷 / 14期
关键词
D O I
10.1103/PhysRevB.47.8620
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present direct experimental observations of the forced flow of two-dimensional magnetic bubble arrays in thin garnet films. Shear flow is produced by forcing the bubble array to move past a flat interface. The array is strongly pinned on the other side of the interface by lithographically produced Permalloy disks. Time-resolved images of the motion of dislocations in the shear flow are obtained via Voronoi constructions. Observations indicate that the shear flow is produced by a gas of interacting dislocations that glides in response to the applied force.
引用
收藏
页码:8620 / 8629
页数:10
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