Document Type
Article
Original Publication Date
2006
Journal/Book/Conference Title
Journal of Applied Physics
Volume
100
Issue
4
DOI of Original Publication
10.1063/1.2230012
Date of Submission
October 2015
Abstract
We report experimental study of spin transport in nanowirespin valve structures consisting of three layers—cobalt, germanium, and nickel. The spin diffusion length in the Ge is estimated to be about 400nm at 1.9K and the corresponding spin relaxation time is about 4ns. At 100K, the spin diffusion length drops to 180nm and the relaxation time is about 0.81ns. These short relaxation times, which depend weakly on temperature, are caused by strong surface roughness scattering that causes rapid spin relaxation via the Elliott-Yafet mode [Elliott, Phys. Rev.96, 266 (1954)].
Rights
Patibandla, S., Pramanik, S., Bandyopadhyay, S., et al. Spin relaxation in a germanium nanowire. Journal of Applied Physics 100, 044303 (2006). Copyright © 2006 AIP Publishing LLC.
Is Part Of
VCU Electrical and Computer Engineering Publications
Comments
Originally published at http://dx.doi.org/10.1063/1.2230012