Original Publication Date
Journal of Applied Physics
DOI of Original Publication
Date of Submission
Since spin and charge are both carried by electrons (or holes) in a solid, it is natural to assume that charge and spin diffusion coefficients will be the same. Drift-diffusion models of spin transport typically assume so. Here, we show analytically that the two diffusion coefficients can be vastly different in quantum wires. Although we do not consider quantum wells or bulk systems, it is likely that the two coefficients will be different in those systems as well. Thus, it is important to distinguish between them in transportmodels, particularly those applied to quantum wire based devices.
Pramanik, S., Bandyopadhyay, S., & Cahay, M. The inequality of charge and spin diffusion coefficients. Journal of Applied Physics, 104, 014304 (2008). Copyright © 2008 American Institute of Physics.
Is Part Of
VCU Electrical and Computer Engineering Publications