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Theory of spin states in coupled quantum dots
Author(s) -
Ponomarev I. V.,
Scheibner M.,
Stinaff E. A.,
Bracker A. S.,
Doty M. F.,
Badescu S. C.,
Ware M. E.,
Korenev V. L.,
Reinecke T. L.,
Gammon D.
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.200671510
Subject(s) - quantum dot , spins , excited state , physics , photoluminescence , spin (aerodynamics) , coupling (piping) , condensed matter physics , quantum mechanics , materials science , optoelectronics , metallurgy , thermodynamics
The coherent quantum coupling of carriers in vertically stacked asymmetric pairs of quantum dots in applied electric fields manifests itself in rich photoluminescence spectral patterns of level crossings and anticrossings. These patterns arise from configurations of charges and spins in optically excited coupled quantum dots. We present a theoretical model that provides a useful picture of these optical properties including spin structure in terms of a minimal number of physical parameters. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)