Measurements of nuclear spin dynamics by spin-noise spectroscopy

Journal Article · Mon Jun 15 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4922771· OSTI ID:22483070

Ryzhov, I. I.; Poltavtsev, S. V.; Kozlov, G. G.; Zapasskii, V. S. ^[1]; Kavokin, K. V.; Glazov, M. M. ^[1]; Vladimirova, M.; Scalbert, D.; Cronenberger, S. ^[2]; Kavokin, A. V. ^[1]; Lemaître, A.; Bloch, J. ^[3]

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1. Spin Optics Laboratory, St. Petersburg State University, 1 Ul'anovskaya, Peterhof, St. Petersburg 198504 (Russian Federation)
2. Laboratoire Charles Coulomb UMR 5221 CNRS/Université de Montpellier, Place Eugene Bataillon, 34095 Montpellier Cedex 05 (France)
3. Laboratoire de Photonique et de Nanostructures, UPR CNRS, Route de Nozay, 91460 Marcoussis (France)

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.

• OSTI ID: 22483070
• Journal Information: Applied Physics Letters, Vol. 106, Issue 24; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
GALLIUM ARSENIDES
LAYERS
NOISE
OPTICAL PUMPING
PEAKS
POLARIZATION
POTENTIALS
SPECTRA
SPECTROSCOPY
SPIN
TIN SULFIDES