TITLE

Magnetic domain wall trapping by in-plane surface roughness modulation

AUTHOR(S)
Swerts, J.; Temst, K.; Van Bael, M. J.; Van Haesendonck, C.; Bruynseraede, Y.
PUB. DATE
February 2003
SOURCE
Applied Physics Letters;2/24/2003, Vol. 82 Issue 8, p1239
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using the influence of surface roughness on the coercivity of thin magnetic films, we have produced an artificially modulated magnetic domain configuration in a chemically homogeneous polycrystalline thin magnetic film. This is achieved by evaporating a thin Fe film on top of a smooth substrate that was previously covered with an array of considerably rougher Ag lines. Magneto-optical Kerr effect measurements revealed the presence of two distinct switching fields in the hysteresis loops. In the intermediate state, a stable magnetic domain configuration of antiparallel aligned domains is achieved. Magnetic force microscopy images indicate that interacting cross-tie domain walls are separating the magnetic domains.
ACCESSION #
9140747

 

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