Spin fluctuations and spin noise

Details Spin fluctuations and spin noise Spin fluctuations and spin noise

2003-12-03

arxiv.org/abs/cond-mat/0312099v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Presented at the International Symposium on Clusters and Nano-Assemblies, Richmond, VA, USA, November 2003

Scientific paper

We have theoretically studied the temporal fluctuations and the resulting kinetic noise in the average spin polarization of an electron ensemble drifting in a quantum wire under a high electric field. Electrons are initially injected in the wire from a ferromagnetic contact with all their spins polarized along the wire axis. The average spin polarization of the ensemble decays during transport because of D'yakonov-Perel' relaxation caused by both Rashba and Dresselhaus interactions. Once steady state is reached, the average spin fluctuates randomly around zero. The time average of this fluctuation is zero. The autocorrelation function of this fluctuation approximates a Lorentzian and so does the spectral density. To our knowledge, this is the first study of spin fluctuations and "spin noise" in a nanostructure.

Affiliated with

Also associated with

No associations

Rating

Spin fluctuations and spin noise does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spin fluctuations and spin noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin fluctuations and spin noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-187699