Erlingsson, S I and Nazarov, Y V and Falko, Vladimir (2001) Nucleus-mediated spin-flip transitions in GaAs quantum dots. Physical review b, 64 (19). ISSN 1098-0121
Full text not available from this repository.Abstract
Spin-flip rates in GaAs quantum dots can be quite slow, thus opening up the possibilities to manipulate spin states in the dots. We present here estimations of inelastic spin-flip rates mediated by hyperfine interaction with nuclei. Under general assumptions the nucleus-mediated rate is proportional to the phonon relaxation rate for the corresponding non-spin-flip transitions. The rate can be accelerated in the vicinity of a singlet-triplet excited state crossing. The small proportionality coefficient depends inversely on the number of nuclei in the quantum dot. We compare our results with known mechanisms of spin-flip in GaAs quantum dots.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Physical review b |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 57043 |
| Deposited By: | ep_importer_pure |
| Deposited On: | 31 Aug 2012 11:45 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 31 Aug 2012 11:45 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/57043 |
Actions (login required)
| View Item |
