skip to main content

Title: 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 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.
Authors:
; ; ;  [1] ; ;  [1] ;  [2] ; ; ;  [3] ;  [1] ;  [4] ; ;  [5]
  1. Spin Optics Laboratory, St. Petersburg State University, 1 Ul'anovskaya, Peterhof, St. Petersburg 198504 (Russian Federation)
  2. (Russian Federation)
  3. Laboratoire Charles Coulomb UMR 5221 CNRS/Université de Montpellier, Place Eugene Bataillon, 34095 Montpellier Cedex 05 (France)
  4. (United Kingdom)
  5. Laboratoire de Photonique et de Nanostructures, UPR CNRS, Route de Nozay, 91460 Marcoussis (France)
Publication Date:
OSTI Identifier:
22483070
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 24; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABUNDANCE; GALLIUM ARSENIDES; LAYERS; NOISE; OPTICAL PUMPING; PEAKS; POLARIZATION; POTENTIALS; SPECTRA; SPECTROSCOPY; SPIN; TIN SULFIDES