Publication Date:
2017-11-29
Description:
Author(s): P. S. Sokolov, M. Yu. Petrov, K. V. Kavokin, A. S. Kurdyubov, M. S. Kuznetsova, R. V. Cherbunin, S. Yu. Verbin, N. K. Poletaev, D. R. Yakovlev, D. Suter, and M. Bayer Optical cooling of a mesoscopic nuclear spin ensemble in a semiconductor is a complex process that involves transferring angular momentum and energy between nuclear spins and optically oriented localized electrons. The established spin temperature is sensitive to the balance between pumping and losses as well as to the heat capacity of the nuclear spin ensemble. This property allows one to determine the zero-frequency value of the correlator of nuclear spin fluctuations and thus to estimate the spin-spin relaxation time T 2 at low magnetic fields from the frequency response of the electron-nuclear spin ensemble to a modulated optical pumping. [Phys. Rev. B 96, 205205] Published Tue Nov 28, 2017
Keywords:
Semiconductors I: bulk
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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