Publication Date:
2015-11-21
Description:
Author(s): J. Debus, D. Kudlacik, V. F. Sapega, D. Dunker, P. Bohn, F. Paßmann, D. Braukmann, J. Rautert, D. R. Yakovlev, D. Reuter, A. D. Wieck, and M. Bayer Through an examination of the dynamic nuclear spin polarization and resonant spin-flip Raman scattering, the authors directly measure the optical-induced Overhauser shift in singly charged (In,Ga)As/GaAs quantum dots. Using a two-color laser excitation scheme, they observe the time evolution of the Overhauser shift, which demonstrates the nuclear spin depolarization over a few seconds. Furthermore, it is shown that this depolarization is strongly dependent on temperature. [Phys. Rev. B 92, 195421] Published Fri Nov 20, 2015
Keywords:
Surface physics, nanoscale physics, low-dimensional systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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