Measurements of nuclear spin dynamics by spin-noise spectroscopy

We exploit the potential of the spin noise spectroscopy (SNS) for studies of nuclear spin dynamics in n-GaAs. The SNS experiments were performed on bulk n-type GaAs layers embedded into a high-finesse microcavity at negative detuning. In our experiments, nuclear spin polarisation initially prepared...

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Bibliographic Details
Published in:Applied physics letters 2015-06, Vol.106 (24)
Main Authors: Ryzhov, I. I., Poltavtsev, S. V., Kavokin, K. V., Glazov, M. M., Kozlov, G. G., Vladimirova, M., Scalbert, D., Cronenberger, S., Kavokin, A. V., Lemaître, A., Bloch, J., Zapasskii, V. S.
Format: Article
Language:English
Subjects:
ABUNDANCE
Applied physics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Condensed Matter
Electron spin
Electrons
GALLIUM ARSENIDES
LAYERS
NOISE
Nuclear spin
OPTICAL PUMPING
Other
PEAKS
Physics
POLARIZATION
Polarization (spin alignment)
POTENTIALS
SPECTRA
SPECTROSCOPY
Spectrum analysis
SPIN
Spin dynamics
TIN SULFIDES
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Summary:We exploit the potential of the spin noise spectroscopy (SNS) for studies of nuclear spin dynamics in n-GaAs. The SNS experiments were performed on bulk n-type GaAs layers embedded into a high-finesse microcavity at negative detuning. In our experiments, nuclear spin polarisation initially prepared by optical pumping is monitored in real time via a shift of the peak position in the electron spin noise spectrum. We demonstrate that this shift is a direct measure of the Overhauser field acting on the electron spin. The dynamics of nuclear spin is shown to be strongly dependent on the electron concentration.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4922771