Spin Relaxation Quenching in Semiconductor Quantum Dots

M. Paillard; X. Marie; P. Renucci; T. Amand; A. Jbeli; J. M. Gérard

doi:10.1103/PhysRevLett.86.1634

Spin Relaxation Quenching in Semiconductor Quantum Dots

M. Paillard, X. Marie, P. Renucci, T. Amand, A. Jbeli, and J. M. Gérard

Phys. Rev. Lett. 86, 1634 – Published 19 February 2001

Abstract

We have studied the spin dynamics in self-organized InAs/GaAs quantum dots by time-resolved photoluminescence performed under strictly resonant excitation. At low temperature, we observe strictly no decay of both the linear and the circular luminescence polarization. This demonstrates that the carrier spins are totally frozen on the exciton lifetime scale.

Received 28 June 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.1634

Authors & Affiliations

M. Paillard¹, X. Marie¹, P. Renucci¹, T. Amand¹, A. Jbeli¹, and J. M. Gérard²

¹Laboratoire de Physique de la Matière Condensée, INSA-CNRS, 135 Avenue de Rangueil, 31077 Toulouse cedex, France
²France Télécom R&D, 196 Avenue H. Ravera 92220 Bagneux, France