Spin Lifetime in Electron-Doped InP Quantum Dots

Details Spin Lifetime in Electron-Doped InP Quantum Dots Spin Lifetime in Electron-Doped InP Quantum Dots

2006-08-02

arxiv.org/abs/cond-mat/0608046v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 2 figures, presented in ICPS-2006

Scientific paper

10.1063/1.2730213

Spin relaxation of electrons doped in InP quantum dots was studied by means of luminescence pump-probe and Hanle measurements. Optical pumping makes spins of doped electrons to be oriented in parallel to the helicity of the circularly polarized excitation. The luminescence pump-probe showed the spin orientation of the doped electrons decay on a millisecond time-scale. Hanle measurement clarified the spin dephasing relaxation time of doped electrons is 1.7 ns which is explained by the frozen fluctuation of nuclear spins.

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