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Spin-orbit effects in GaAs quantum wells: Interplay between Rashba, Dresselhaus, and Zeeman interactions

AutorLipparini, Enrico; Barranco, Manuel; Malet, Francesc; Pi, Martí; Serra, Llorenç
Palabras claveGallium arsenide
III-V semiconductors
Semiconductor quantum wells
Spin-orbit interactions
Zeeman effect
Paramagnetic resonance
Landau levels
Fecha de publicación6-sep-2006
EditorAmerican Physical Society
CitaciónPhysical Review B 74, 115303 (2006)
ResumenThe interplay between Rashba, Dresselhaus, and Zeeman interactions in a quantum well submitted to an external magnetic field is studied by means of an accurate analytical solution of the Hamiltonian, including electron-electron interactions in a sum-rule approach. This solution allows us to discuss the influence of the spin-orbit coupling on some relevant quantities that have been measured in inelastic light scattering and electron-spin resonance experiments on quantum wells. In particular, we have evaluated the spin-orbit contribution to the spin splitting of the Landau levels and to the splitting of charge- and spin-density excitations. We also discuss how the spin-orbit effects change if the applied magnetic field is tilted with respect to the direction perpendicular to the quantum well.
Descripción12 pages.-- PACS numbers: 73.21.Fg, 73.22.Dj, 73.22.Lp.-- Final full-text version of the paper available at: http://dx.doi.org/10.1103/PhysRevB.74.115303.
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