Spin Relaxation and Anticrossing in Quantum Dots:

Rashba versus Dresselhaus Spin-Orbit Coupling

Denis V. Bulaev and Daniel LossDepartment of Physics

University of Basel, Switzerland

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Anti-crossing of levels due to Rashba coupling [1]

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Energy [meV]

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[1] C. F. Destefani, S. E. Ulloa, and G. E. Marques. Phys. Rev. B 69, 125302 (2004).

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Spin relaxation rates (Rashba coupling)

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Spin relaxation rates (Dresselhaus coupling)

B(T)B(T)

1.1 T

(a) (b)

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s)

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B(T)5.1 5.2 5.3

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(meV

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Ene

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E2 – E1

E2 – E1

E3 – E1

E3 – E1

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Spin relaxation rates

Dresselhaus coupling Rashba coupling

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