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Suppression of weak antilocalization in GaxIn1-xAs/InP narrow quantum wires
- Source :
- Physical review / B 74(8), 081301 (2006). doi:10.1103/PhysRevB.74.081301
- Publication Year :
- 2006
- Publisher :
- APS, 2006.
-
Abstract
- The magnetoconductivity of GaxIn1-xAs/InP quantum wires with widths in the range of 1220-250 nm was investigated. The finite zero-field spin splitting in our samples gives rise to spin relaxation and weak antilocalization in wide wires. In contrast, for the narrow wires, only weak-localization behavior is seen even though the zero-field spin splitting is independent of wire width. The observed renormalization of the spin-relaxation length due to purely geometrical effects can be described quantitatively using a model where the effect of spin precession is represented by spin-dependent pseudomagnetic fluxes, and by exact numerical transport calculations.
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physical review / B 74(8), 081301 (2006). doi:10.1103/PhysRevB.74.081301
- Accession number :
- edsair.od......3364..42dbc8b8255e83b71182907757d11bb7