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Title: A study of spin relaxation on spin transfer switching of a noncollinear magnetic multilayer structure
Authors: Chung, N.L.
Jalil, M.B.A. 
Tan, S.G.
Guo, J. 
Kumar, S.B. 
Issue Date: 2008
Source: Chung, N.L., Jalil, M.B.A., Tan, S.G., Guo, J., Kumar, S.B. (2008). A study of spin relaxation on spin transfer switching of a noncollinear magnetic multilayer structure. Journal of Applied Physics 104 (8) : -. ScholarBank@NUS Repository.
Abstract: We study the spin relaxation effects in spacer and free layers on spin torque of a current-perpendicular-to-plane (CPP) magnetic multilayer structure with noncollinear magnetization. We apply a generalized spin drift-diffusion model based on previous models by Zhang, Levy, and Fert, which accounts for both longitudinal and transverse components of spin accumulation and a spin current in a noncollinear system. The transverse spin accumulation and the areal resistance of a typical Co-Cu-Co pseudo-spin-valve are calculated as functions of angular deviation between the free and fixed Co magnetizations in the presence of an additional capping layer of Au. It was found that a long spin diffusion length in the spacer layer and a short transverse spin diffusion length in the free layer play a critical role in producing a high spin transfer torque within the free layer. © 2008 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.2999344
Appears in Collections:Staff Publications

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