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Classical memory effects on spin dynamics in two-dimensional systems

I. S. Lyubinskiy·V. Yu. Kachorovskii
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Abstract

We discuss classical dynamics of electron spin in two-dimensional semiconductors with a spin-split spectrum. We focus on a special case, when spin-orbit induced random magnetic field is directed along a fixed axis. This case is realized in III-V-based quantum wells grown in [110] direction and also in [100]-grown quantum wells with equal strength of Dresselhaus and Bychkov-Rashba spin-orbit couplings. We show that in such wells the long-time spin dynamics is determined by non-Markovian memory effects. Due to these effects the non-exponential tail $1/t^2$ appears in the spin polarization.

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I. S. Lyubinskiy, V. Yu. Kachorovskii. 2005-07-26. Classical memory effects on spin dynamics in two-dimensional systems. https://doi.org/10.1103/physrevb.73.041301

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