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Electron spin relaxation by nuclei and holes in single InAs quantum dots
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Four PL spectra measured at four different cw excitation laser powers, where the laser power increases from bottom to top. (b) and (c) Linear and circular polarization PL under excitation, respectively.

Image of FIG. 2.
FIG. 2.

Energy scheme of initial and final states of doubly charged exciton (left), and corresponding optical transition channels, where the spin configurations of initial (final) states and the energy splitting of , , and are marked (right).

Image of FIG. 3.
FIG. 3.

Circular polarization degree as a function of cw excitation power for lines A (circles) and C (squares) at excitation wavelength .

Image of FIG. 4.
FIG. 4.

(a) and (b) Circular polarization degree vs. decay time of lines C and A, respectively. The curves are measured under different excitation powers and magnetic field conditions. (c) Circular polarization degree vs. decay time of line A with a logarithmic scale of the abscissa. A power-law time dependence is shown by fitting solid lines.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electron spin relaxation by nuclei and holes in single InAs quantum dots