Please use this identifier to cite or link to this item:
|Title:||Effect of interfacial spin flip and momentum scattering on magnetoresistance||Authors:||Kumar, S.B.
Interfacial spin flip
|Issue Date:||Jun-2007||Citation:||Kumar, S.B., Tan, S.G., Jalil, M.B.A. (2007-06). Effect of interfacial spin flip and momentum scattering on magnetoresistance. IEEE Transactions on Magnetics 43 (6) : 2863-2865. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2007.892570||Abstract:||In this paper, we have developed a model and performed a numerical analysis using the spin-drift diffusion method to study the effect of interfacial spin scattering on the magnetoresistance of a simple trilayer spin-valve structure. We have modelled the interfaces as ultra-thin layers, in the limit of the layer thickness approaching zero. Our analysis is focused on three important interfacial parameters, i.e., interfacial resistance (RI), interfacial spin selectivity (γ), and interfacial spin-flip parameter (ζ). We compared the relative contribution of bulk scattering (BS) and interfacial scattering (IS) to the overall MR. We have noticed that when γ is greater (smaller) than a critical value, γC, then MR increases with increasing (decreasing) RI. Contrary to general expectation, larger ferromagnetic (FM) resistivity results in lower MR if γ > γC. Finally, we have shown the effect of ζ on MR. At high (low) ζ, which signifies spin coherence at the interface is conserved (depolarized), MR increases (decreases). We have also noted the competition between γ and ζ in contributing towards overall MR. We have also shown that the negative effect on MR due to spin flip can be minimized by using higher RI. © 2007 IEEE.||Source Title:||IEEE Transactions on Magnetics||URI:||http://scholarbank.nus.edu.sg/handle/10635/83670||ISSN:||00189464||DOI:||10.1109/TMAG.2007.892570|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Apr 8, 2020
WEB OF SCIENCETM
checked on Mar 23, 2020
checked on Mar 29, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.