Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Spin noise spectroscopy in GaAs.

M Oestreich1, M Römer, R J Haug

  • 1Institut für Festkörperphysik, Universität Hannover, Appelstrasse 2, D-30167 Hannover, Germany.

Physical Review Letters
|December 31, 2005
PubMed
Summary

Researchers measured electron spin noise in gallium arsenide (GaAs) using Faraday-rotation spectroscopy. This technique allows undisturbed observation of spin dynamics, yielding accurate measurements of relaxation time and Landé g factor.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Simultaneous direct measurement of the electrocaloric and dielectric dynamics of ferroelectrics with microsecond temporal resolution.

The Review of scientific instruments·2023
Same author

Low Temperature Relaxation of Donor Bound Electron Spins in ^{28}Si:P.

Physical review letters·2021
Same author

Separating the two polarities of the POLO contacts of an 26.1%-efficient IBC solar cell.

Scientific reports·2020
Same author

Distributed natural gas venting offshore along the Cascadia margin.

Nature communications·2018
Same author

Mud extrusion and ring-fault gas seepage - upward branching fluid discharge at a deep-sea mud volcano.

Scientific reports·2018
Same author

Widespread methane seepage along the continental margin off Svalbard - from Bjørnøya to Kongsfjorden.

Scientific reports·2017

Area of Science:

  • Solid-state physics
  • Quantum optics
  • Semiconductor spintronics

Background:

  • Understanding electron spin dynamics is crucial for developing advanced semiconductor devices.
  • Faraday-rotation spectroscopy is a powerful optical technique for probing magnetic phenomena in materials.
  • Gallium arsenide (GaAs) is a key semiconductor material with significant applications in electronics and optoelectronics.

Purpose of the Study:

  • To investigate the noise spectrum of electron spins in bulk GaAs.
  • To demonstrate the capability of Faraday-rotation noise spectroscopy for undisturbed measurement of spin dynamics.
  • To determine electron-spin relaxation time and the electron Landé g factor in n-doped GaAs.

Main Methods:

  • Utilizing Faraday-rotation noise spectroscopy to measure the noise spectrum of electron spins.
  • Performing experiments on n-doped GaAs at low temperatures.
  • Comparing experimental noise spectra with theoretical models.

Main Results:

  • Successfully observed the noise spectrum of electron spins in bulk GaAs.
  • Measured the electron-spin relaxation time and the electron Landé g factor.
  • Demonstrated good agreement between the measured noise spectrum and a theory based on Poisson distribution probability.

Conclusions:

  • Faraday-rotation noise spectroscopy is an effective technique for undisturbed measurement of electron-spin dynamics in semiconductors.
  • The experimental results for n-doped GaAs validate the theoretical model based on Poisson distribution probability.
  • This work provides valuable insights into electron spin behavior in GaAs for future spintronic applications.

Related Experiment Videos