Gate control of low-temperature spin dynamics in two-dimensional hole systems

Details Gate control of low-temperature spin dynamics in two-dimensional hole systems Gate control of low-temperature spin dynamics in two-dimensional hole systems

2009-04-27

arxiv.org/abs/0904.4111v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 7 figures

Scientific paper

We have investigated spin and carrier dynamics of resident holes in high-mobility two-dimensional hole systems in GaAs/Al$_{0.3}$Ga$_{0.7}$As single quantum wells at temperatures down to 400 mK. Time-resolved Faraday and Kerr rotation, as well as time-resolved photoluminescence spectroscopy are utilized in our study. We observe long-lived hole spin dynamics that are strongly temperature dependent, indicating that in-plane localization is crucial for hole spin coherence. By applying a gate voltage, we are able to tune the observed hole g factor by more than 50 percent. Calculations of the hole g tensor as a function of the applied bias show excellent agreement with our experimental findings.

Affiliated with

Also associated with

No associations

Rating

Gate control of low-temperature spin dynamics in two-dimensional hole systems 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 Gate control of low-temperature spin dynamics in two-dimensional hole systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gate control of low-temperature spin dynamics in two-dimensional hole systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-322450