Interplay between one-dimensional confinement and crystallographic anisotropy in ballistic hole quantum wires

Details Interplay between one-dimensional confinement and crystallographic anisotropy in ballistic hole quantum wires Interplay between one-dimensional confinement and crystallographic anisotropy in ballistic hole quantum wires

2008-09-05

arxiv.org/abs/0809.0969v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1088/1367-2630/11/4/043018

We study the Zeeman splitting in induced ballistic 1D quantum wires aligned along the [233] and [011] axes of a high mobility (311)A undoped heterostructure. Our data shows that the g-factor anisotropy for magnetic fields applied along the high symmetry [011] direction can be explained by the 1D confinement only. However when the magnetic field is along [233] there is an interplay between the 1D confinement and 2D crystal anisotropy. This is highlighted for the [233] wire by an unusual non-monotonic behavior of the g-factor as the wire is made narrower.

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