Intrinsic spin dynamics in semiconductor quantum dots

Details Intrinsic spin dynamics in semiconductor quantum dots Intrinsic spin dynamics in semiconductor quantum dots

2005-09-22

arxiv.org/abs/cond-mat/0509587v1

Nanotechnology 16, 2804-2807 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

to be published in Nanotechnology. Separated figure files

Scientific paper

10.1088/0957-4484/16/12/011

We investigate the characteristic spin dynamics corresponding to semiconductor quantum dots within the multiband envelope function approximation (EFA). By numerically solving an $8\times8$ $k\cdot p$ Hamiltonian we treat systems based on different III-V semiconductor materials.It is shown that, even in the absence of an applied magnetic field, these systems show intrinsic spin dynamics governed by intraband and interband transitions leading to characteristic spin frequencies ranging from the THz to optical frequencies.

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