Publication Type
Journal
Journal Name
Physical Review Letters
Publication Date
Volume
111
Issue
10
Abstract
The magnetic domains of embedded micromagnets defined in epitaxial La0.7Sr0.3MnO3 (LSMO) thin films and LaFeO3/LSMO bilayers were investigated using soft x-ray magnetic microscopy. Square micromagnets with 2 x 2 μm dimensions aligned with their edges parallel to the easy axes of LSMO provide an ideal experimental geometry for probing the influence of interface exchange coupling on the magnetic domain patterns. The observation of unique domain patterns not found in ferromagnetic metal microstructures, namely divergent antiferromagnetic vortex domains and “Z”-type domains, suggests the simultaneous presence of spin-flop coupling and local exchange bias in this system.
