Photoemission electron microscopy investigation of patterned cobalt/Terfenol-D sandwich films

Abstract Micro- and nanoelements of cobalt/Terfenol-D sandwich systems were produced using pre-patterned silicon substrates and the resulting magnetic domain structures were investigated using photoemission electron microscopy. Shape-induced magnetic domains form in the pre-patterned rectangle, triangle and ring structures, and domain wall pinning is observed in dot arrays. A strong correlation between the magnetic domains in the two magnetic films indicates strong ferromagnetic interlayer coupling.