Phys. Rev. B 58, R14717–R14720 (1998)Exchange coupling and macroscopic domain structure in a wedged permalloy/FeMn bilayer
Local Kerr effect and magnetometry measurements reveal that switching in exchange-coupled wedged-permalloy/FeMn bilayers involves only two macroscopic domains, extending across the entire sample, separated by a 180° domain wall, which moves along the wedge direction. The squareness of the hysteresis loop of such exchange-coupled layers depends on the thickness variation of the sample under measurement. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.58.R14717
DOI:
10.1103/PhysRevB.58.R14717
PACS:
75.30.Et, 75.60.Ch
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