Two-Beam Spin Noise Spectroscopy

Abstract

We propose a method of two-beam spin noise spectroscopy to test the spin transport at equilibrium via analysis of correlations between time-shifted spin fluctuations at different space locations. This method allows one to determine the strength of spin-orbit interaction and spin relaxation time and separate spin noise of conducting electrons from the background noise of localized electrons. We formulate a theory of two-beam spin noise spectroscopy in semiconductor wires with Bychkov-Rashba spin-orbit interaction taking into account several possible spin relaxation channels and finite size of laser beams. Our theory predicts a peak shift with respect to the Larmor frequency to higher or lower frequencies depending on the strength of spin orbit interaction and distance between the beams. The two-beam spin noise spectroscopy could find applications in experimental studies of semiconductors, emergent materials and many other systems.

References in corpus (6)

• Theory of Spin Hall conductivity in n-doped GaAs
• Spin noise spectroscopy in GaAs (110) quantum wells: Access to intrinsic spin lifetimes and equilibrium electron dynamics
• Semiconductor Spin Noise Spectroscopy: Fundamentals, Accomplishments, and Challenges
• Shot noise in a diffusive F-N-F spin valve
• Theory of spin noise in nanowires
• Radial Spin Helix in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling

Cited by in corpus (14)

• The Theory of Spin Noise Spectroscopy: A Review
• Two-color spin noise spectroscopy: Using spin fluctuation correlations to reveal homogeneous linewidths within quantum dot ensembles
• Linear optics, Raman scattering, and spin noise spectroscopy
• Nonequilibrium spin noise spectroscopy
• Correlation function of spin noise due to atomic diffusion
• Spatiotemporal spin fluctuations caused by spin-orbit-coupled Brownian motion
• Probing Many-Body Localization by Spin Noise Spectroscopy
• Higher Order Spin Noise Statistics
• Nonequilibrium spin noise in a quantum dot ensemble
• Homogenization of Doppler broadening in spin noise spectroscopy
• Spin noise spectroscopy of quantum dot molecules
• Raman scattering model of the spin noise
• Hybrid Spin Noise Spectroscopy and the Spin Hall Effect
• Quantifying the amplitudes of ultrafast magnetization fluctuations in Sm${}_{0.7}$Er${}_{0.3}$FeO${}_3$ using femtosecond noise correlation spectroscopy