A W Holleitner et al 2007 New J. Phys. 9 342 doi:10.1088/1367-2630/9/9/342
Dimensionally constrained D'yakonov–Perel' spin relaxation in n-InGaAs channels: transition from 2D to 1D
Focus on Spintronics in Reduced DimensionsA W Holleitner1, V Sih2, R C Myers2, A C Gossard2 and D D Awschalom2,3
Show affiliationsPart of Focus on Spintronics in Reduced Dimensions
We investigate both the spin dynamics and the magnetotransport properties of two-dimensional (2D) n-InGaAs channels as a function of the channel width. We find that the electron spin scattering in the channels is limited by a dimensionally constrained D'yakonov–Perel' mechanism, while the magnetotransport reveals purely 2D behaviour. For submicron channels the spin relaxation times increase for decreasing widths, while the magnetotransport data exhibit no band bending effects for the investigated samples. Temperature and photon energy dependent measurements rule out dissipative effects and further corroborate the experimental observation of a dimensionally constrained spin relaxation.
- PACS
- Subjects
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Condensed matter: electrical, magnetic and optical
- Dates
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Issue 9 (September 2007)
Received 30 March 2007
Published 28 September 2007
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Dimensionally constrained D'yakonov–Perel' spin relaxation in n-InGaAs channels: transition from 2D to 1D
A W Holleitner et al 2007 New J. Phys. 9 342
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