FMR studies of Y3Fe5O12/Gd3Ga5O12 (YIG/GGG) superlattices and YIG thin films

Authors :: Chiang, Wen-C.
Chern, M.Y.
Lin, J.G.
Huang, C.Y.
Source :: Journal of Magnetism & Magnetic Materials. Feb2002, Vol. 239 Issue 1-3, p332. 3p.
Publication Year :: 2002
Abstract: We have employed ferromagnetic resonance to obtain magnetic anisotropy information in a series of YIG/GGG superlattices and a single YIG thin film with temperature variations. The Curie temperature of these samples increases with the YIG layer thickness, reaching saturation beyond a specific YIG thickness. As temperature rises, the magnitude of the calculated magnetocrystalline anisotropy constant decreases while the uniaxial anisotropy constant exhibits growing behavior. [Copyright &y& Elsevier]