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Quantum simulations of spin-relaxation and transport in copper.
- Source :
-
European Physical Journal B: Condensed Matter . Oct2007, Vol. 59 Issue 4, p451-456. 6p. 1 Chart, 4 Graphs. - Publication Year :
- 2007
-
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]
- Subjects :
- *SPINTRONICS
*MICROELECTRONICS
*NANOTECHNOLOGY
*SEMICONDUCTOR doping
*COPPER
Subjects
Details
- Language :
- English
- ISSN :
- 14346028
- Volume :
- 59
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- European Physical Journal B: Condensed Matter
- Publication Type :
- Academic Journal
- Accession number :
- 27487182
- Full Text :
- https://doi.org/10.1140/epjb/e2007-00305-2