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Zeeman energy and anomalous spin splitting in lateral GaAs quantum dots

Valín-Rodríguez, Manuel; Puente, Antonio; Serra, Llorenç
European Physical Journal B 39, 87-92 (2004)

The level splittings induced by a horizontal magnetic field in a parabolic two-dimensional quantum dot with spin-orbit interaction are obtained. Characteristic features induced by the spin-orbit coupling are the appearance of zero-field gaps as well as energy splittings that depend on the electronic state and the orientation of the magnetic field in the quantum-dot plane. It is suggested that these quantum-dot properties could be used to determine the Rashba and Dresselhaus spin-orbit intensities.