Charge Transport in a Spin-Polarized 2D Electron System in Silicon

Details Charge Transport in a Spin-Polarized 2D Electron System in Silicon Charge Transport in a Spin-Polarized 2D Electron System in Silicon

2006-05-30

arxiv.org/abs/cond-mat/0605740v1

Pisma ZhETF, v83(8), 390 (2006) [JETP Letters, v83(8), 332 (2006)]

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1134/S0021364006080078

The temperature dependences of the conductivity \sigma(T) for strongly interacting 2D electron system in silicon have been analyzed both in zero magnetic field and in spin-polarizing magnetic field of 14.2T, parallel to the sample plane. Measurements were carried out in a wide temperature range (1.4-9)K, in the ballistic regime of electron-electron interaction, i.e., for T\tau > 1. In zero magnetic field, the data obtained for \sigma(T) are quantitatively described by the theory of interaction corrections. In the fully spin-polarized state, the measured \sigma(T) dependences are nonlinear and even nonmonotonic for the same temperature range, where the \sigma(T) dependences are monotonic in the absence of the field. Nevertheless, the low-temperature parts of the experimental \sigma(T) dependences are linear and are qualitatively consistent with the calculated interaction corrections.

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