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Título : Spin-orbit effects in GaAs quantum wells: Interplay between Rashba, Dresselhaus, and Zeeman interactions
Autor : Lipparini, Enrico; Barranco, Manuel; Malet, Francesc; Pi, Martí; Serra, Llorenç
Palabras clave : Gallium arsenide
III-V semiconductors
Semiconductor quantum wells
Spin-orbit interactions
Zeeman effect
Paramagnetic resonance
Landau levels
Fecha de publicación : 6-sep-2006
Editor: American Physical Society
Citación : Physical Review B 74, 115303 (2006)
Resumen: The 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.
Descripción : 12 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.
URI : http://hdl.handle.net/10261/6114
DOI: 10.1103/PhysRevB.74.115303
ISSN: 1098-0121
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