Strong suppression of spin relaxation in quantum wires
โ Scribed by Tomoaki Kaneko; Mikito Koshino; Tsuneya Ando
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 156 KB
- Volume
- 40
- Category
- Article
- ISSN
- 1386-9477
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โฆ Synopsis
Spin relaxation is studied numerically in quantum wires with spin-orbit interaction using a tight-binding model. The spin relaxation length increases with the decrease of the width much faster than classical results even in the region where the mean free path is smaller than the width and the subband structure is destroyed completely.
๐ SIMILAR VOLUMES
We present a numerical model for shot-noise suppression in a semiconductor quantum wire, based on parameters obtained from a purposely fabricated and characterized device. Shot-noise suppression is studied as a function of the voltage applied to the depletion gates forming the wire in a GaAs/AlGaAs