Spin noise spectroscopy in GaAs

Details Spin noise spectroscopy in GaAs Spin noise spectroscopy in GaAs

2005-05-20

arxiv.org/abs/cond-mat/0505495v1

Phys. Rev. Lett. 95, 216603 (2005)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.95.216603

We observe the noise spectrum of electron spins in bulk GaAs by Faraday rotation noise spectroscopy. The experimental technique enables the undisturbed measurement of the electron spin dynamics in semiconductors. We measure exemplarily the electron spin relaxation time and the electron Lande g-factor in n-doped GaAs at low temperatures and find good agreement of the measured noise spectrum with an unpretentious theory based on Poisson distribution probability.

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