1. Quantum simulations of spin-relaxation and transport in copper.
- Author
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McKenna, K. P. and Morgan, G. J.
- Subjects
- *
SPINTRONICS , *MICROELECTRONICS , *NANOTECHNOLOGY , *SEMICONDUCTOR doping , *COPPER - Abstract
A quantum equation of motion method is applied to simulate conduction electron spin-relaxation and transport in the presence of the spin-orbit interaction and disorder. A spin-relaxation time of 25ps is calculated for Cu with a realistic low temperature resistivity of 3.2 μΩ cm – corresponding to a spin-diffusion length of about 0.4 μm. Spin-relaxation in a finite nanocrystallite of Cu is also simulated and a short spin-relaxation time (0.47 ps) is calculated for a crystallite with 7% surface atoms. The spin-relaxation calculated for bulk Cu is in good agreement with experimental evidence, and the dramatic nanocrystallite effect observed has important implications for nano-spintronic devices. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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