title: Two-axis magnetisation analysis of epitaxial cobalt films.
abstract: Cobalt films were grown by molecular beam epitaxy on CaF2 buffer layers on silicon. Due to unique properties of CaF2/Si(100) interface, the surface of CaF2 has grooves along [110] direction. Cobalt grown on it has in-plane uniaxial magnetic anisotropy with easy axis along the grooves. The dependence of remanence magnetisation and coercivity on azimuth angle (between the grooves and field) follows single domain model in the range from 0 to 80 degrees. For hysteresis loops of both parallel and perpendicular components of magnetisation, quantitative agreement was achieved within the model of coherent rotation with certain distribution of anisotropy energy over regions of the sample. Between 80 degrees and 90 degrees, the film splits into multiple domains.
authors: Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 3 Research Link, 117602, Singapore.
authors: N L
authors: NL
authors: Yakovlev
authors: H
authors: H
authors: Chen
authors: K
authors: K
authors: Zhang
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D003198:Computer Simulation; D008280:Magnetics; D008422:Materials Testing; D008567:Membranes, Artificial; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size
chemical_list: D008567:Membranes, Artificial; D003035:Cobalt