Publication Date:
2008
Short description:
Spin relaxation due to spin-orbit coupling in multi-electron quantum dots / J. I., C., A., B., Goldoni, G., M., R., Molinari, E.. - In: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES. - ISSN 1386-9477. - STAMPA. - 40:6(2008), pp. 1804-1806. [10.1016/j.physe.2007.09.127]
abstract:
We show that the number of electrons confined in a semiconductor quantum dot has a strong influence over the Rashba and Dresselhaus spin-orbit (SO) admixture. This can be exploited to improve the lifetime of spin excitations, as compared to the usual one- and two-electron devices. The physical mechanisms reducing SO admixture are discussed, and numerical results for realistic weakly confined GaAs/AlGaAs dots are reported. (c) 2007 Elsevier B.V. AD rights reserved.
Iris type:
Articolo su rivista
Keywords:
Spin relaxation; pin-orbit coupling; multi-electron quantum dots
List of contributors:
J. I., Climente; A., Bertoni; Goldoni, Guido; M., Rontani; Molinari, Elisa
Published in: