@Article{SandovalSilvSilvLaRo:2016:ElFaAn,
author = "Sandoval, Marcelo Alejandro Toloza and Silva, Erasmo
Assump{\c{c}}{\~a}o de Andrada and Silva, A. Ferreira da and La
Rocca, G. C.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal
da Bahia (UFBA)} and {Scuola Normale Superiore and CNISM}",
title = "Electron g factor anisotropy in asymmetric III-V semiconductor
quantum wells",
journal = "Semiconductor Science and Technology",
year = "2016",
volume = "31",
number = "11",
pages = "115008",
month = "Nov.",
keywords = "electron g factor, semiconductor quantum wells, spin-orbit
interaction.",
abstract = "The electron effective g factor tensor in asymmetric III-V
semiconductor quantum wells (AQWs) and its tuning with the
structure parameters and composition are investigated with
envelope-function theory and the 8 x 8k . p Kane model. The
spin-dependent terms in the electron effective Hamiltonian in the
presence of an external magnetic field are treated as a
perturbation and the g factors g(perpendicular to)* and g(parallel
to)*, for the magnetic field in the QW plane and along the growth
direction, are obtained analytically as a function of the well
width L. The effects of the structure inversion asymmetry (SIA) on
the electron g factor are analyzed. For the g-factor main
anisotropy Delta g = g(perpendicular to)*-g(parallel to)*. in
AQWs, a sign change is predicted in the narrow well limit due to
SIA, which can explain recent measurements and be useful in
spintronic applications. Specific results for narrow-gap
AlSb/InAs/GaSb and AlxGa1-xAsGaAs/AlyGa1-yAs AQWs are presented
and discussed with the available experimental data; in particular
InAs QWs are shown to not only present much larger g factors but
also a larger g-factor anisotropy, and with the opposite sign with
respect to GaAs QWs.",
doi = "10.1088/0268-1242/31/11/115008",
url = "http://dx.doi.org/10.1088/0268-1242/31/11/115008",
issn = "0268-1242",
language = "en",
targetfile = "sandoval_electron.pdf",
urlaccessdate = "17 jan. 2021"
}