Non-Markovian Effects in the Spin Transfer Dynamics in Diluted Magnetic Semiconductors due to Excitation in Proximity to the Band Edge

Titelangaben

Cygorek, Moritz ; Axt, Vollrath Martin:
Non-Markovian Effects in the Spin Transfer Dynamics in Diluted Magnetic Semiconductors due to Excitation in Proximity to the Band Edge.
In: Journal of Physics: Conference Series. Bd. 647 (2015) Heft 1 . - 012042.
ISSN 1742-6596
DOI: https://doi.org/10.1088/1742-6596/647/1/012042

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Abstract

The non-Markovian effects in the spin dynamics in diluted magnetic semiconductors found in quantum kinetic calculations can be reproduced very well by a much simpler effective single electron theory, if a finite memory is accounted for. The resulting integro-differential equation can be solved by a differential transform method, yielding the Taylor series of the solution. From the comparison of both theories it can be concluded that the non-Markovian effects are due to the spectral proximity of the excited electrons to the band edge.