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Two time scales of the electron–hole spin relaxation in InAs/GaAs quantum dots
Author(s) -
Testelin C.,
Aubry E.,
Chaouache M.,
Maaref M.,
Bernardot F.,
Chamarro M.,
Gérard J.M.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200671603
Subject(s) - quantum dot , excited state , relaxation (psychology) , condensed matter physics , electron , spin polarization , spin (aerodynamics) , physics , polarization (electrochemistry) , chemistry , atomic physics , quantum mechanics , psychology , social psychology , thermodynamics
We have performed time‐resolved differential transmission on an ensemble of InAs/GaAs self‐assembled quantum dots. We have calculated the polarization rate decay, on which two time scales in the electron–hole spin relaxation dynamics are observed. A study versus the energy of the interband transition reveals that the fast spin relaxation becomes important when excited and mixed states are involved. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)