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@ARTICLE{Bringer:861129,
author = {Bringer, Andreas and Heedt, Sebastian and Schäpers, Th.},
title = {{D}resselhaus spin-orbit coupling in [111]-oriented
semiconductor nanowires},
journal = {Physical review / B},
volume = {99},
number = {8},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2019-01686},
pages = {085437},
year = {2019},
abstract = {The contribution of bulk inversion asymmetry to the total
spin-orbit coupling is commonly neglected for group III-V
nanowires grown in the generic [111] direction. We have
solved the complete Hamiltonian of the circular nanowire
accounting for bulk inversion asymmetry via exact numerical
diagonalization. Three different symmetry classes of angular
momentum states exist, which reflects the threefold rotation
symmetry of the crystal lattice about the [111] axis. A
particular group of angular momentum states contains
degenerate modes which are strongly coupled via the
Dresselhaus Hamiltonian, which results in a significant
energy splitting with increasing momentum. Hence, under
certain conditions Dresselhaus spin-orbit coupling is
relevant for [111] InAs and [111] InSb nanowires. We
demonstrate momentum-dependent energy splittings and the
impact of Dresselhaus spin-orbit coupling on the dispersion
relation. In view of possible spintronics applications
relying on bulk inversion asymmetry we calculate the spin
expectation values and the spin texture as a function of the
Fermi energy. Finally, we investigate the effect of an axial
magnetic field on the energy spectrum and on the
corresponding spin polarization.},
cin = {PGI-9 / PGI-1 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)PGI-1-20110106 /
$I:(DE-82)080009_20140620$},
pnm = {522 - Controlling Spin-Based Phenomena (POF3-522)},
pid = {G:(DE-HGF)POF3-522},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000459936100009},
doi = {10.1103/PhysRevB.99.085437},
url = {https://juser.fz-juelich.de/record/861129},
}