Phys. Rev. B 82, 075321 (2010) [6 pages]Optical orientation of a single Mn spin in a quantum dot: Role of carrier spin relaxationReceived 28 June 2010; published 20 August 2010 In order to explain the recently observed phenomenon of optical orientation of a single Mn spin residing inside a CdTe quantum dot, a process of Mn spin relaxation with characteristic time scale of tens of nanosecond had been invoked. We show that after taking into account the mixing of states of the exciton and the Mn spin (due to the sp-d exchange interaction), the observed Mn optical orientation time can be explained by invoking only the processes of carrier spin relaxation. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.82.075321
DOI:
10.1103/PhysRevB.82.075321
PACS:
78.67.Hc, 78.55.Et, 72.25.Fe, 72.25.Rb
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