Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2010.2045481
Title: Generalized spin electro-motive force in spatially dependent systems
Authors: Jalil, M.B.A. 
Tan, S.G. 
Keywords: Monopole field
Spin electromotive force
Spin gauge
Spin orbit interaction
Issue Date: Jun-2010
Source: Jalil, M.B.A., Tan, S.G. (2010-06). Generalized spin electro-motive force in spatially dependent systems. IEEE Transactions on Magnetics 46 (6) : 1626-1629. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2010.2045481
Abstract: The coupling of an electron to an electromagnetic field is usually described by U(1) gauge fields in the Hamiltonian, whose gradient and curvature yield the electric and magnetic fields, respectively. We apply this gauge field formalism for two cases: i) electrons traveling through a medium with a spatial moment texture, and adiabatically relaxing along the local moment orientation, and ii) in the presence of Rashba spin-orbit interaction. Having obtained the Abelian U(1) and non-Abelian SU(2) gauge fields corresponding to the two cases, we apply the generalized Maxwell's relation to derive the resulting spin electromotive force (e.m.f.). Finally, we analyze the spin e.m.f. effect in an exemplary domain-wall system in a ferromagnetic nanostrip. © 2006 IEEE.
Source Title: IEEE Transactions on Magnetics
URI: http://scholarbank.nus.edu.sg/handle/10635/70415
ISSN: 00189464
DOI: 10.1109/TMAG.2010.2045481
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