Nanocomposites and nanomaterials

Control parameters of the spin-flip relaxation mechanism in Self-Assembled Quantum Dots.

V.N. Stavrou

1 Division of Physics, Hellenic Naval Academy, Hatzikyriakou Avenue, Pireaus  
   185 39,  Greece E-mail: vstavrou@snd.edu.gr
2 Department of Physics and Astronomy, University of Iowa, Iowa City, IA 52242,    
   USA

The spin-flip relaxation mechanism for an electron in a self-assembled quantum dot (SAQD) due to emission of an acoustic phonon, is presented. Ellipsoidal and spherical lens shaped InxGa1-xAs quantum dots, with electronic states calculated using 8-band strain dependent  theory, are considered. The dependence of spin-flip mechanism on the shape the QDs, on the Landé g-factor, on the external magnetic field and  on Zeeman energy is highlighted. 

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