Chotorlishvili L., Toklikishvili Z., Komnik A., and Berakdar J.

the presence of driving external magnetic fields. The orbital motion of the electron is coupled to the spin dynamics by spin?orbit interaction of the Dresselhaus type. We derive an effective time-dependent model Hamiltonian for the orbital motion of the electron and obtain a condition for synchronization of the orbital and the spin dynamics. We find an analytical expression for the Arnold ?tongue? and propose an experimental scheme for realizing the proposed synchronization.

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