Electronic and optical properties of core-shell nanowires in a magnetic field
Faculty of Sciences. Physics
Journal of physics : condensed matter. - London
, p. 1-12
University of Antwerp
The electronic and optical properties of zincblende nanowires are investigated in the presence of a uniform magnetic field directed along the  growth direction within the k . p method. We focus our numerical study on core-shell nanowires consisting of the III-V materials GaAs, AlxGa1-xAs and AlyGa1-y/0.51In0.49P. Nanowires with electrons confined in the core exhibit a Fock-Darwin-like spectrum, whereas nanowires with electrons confined in the shell show Aharonov-Bohm oscillations. Thus, by properly choosing the core and the shell materials of the nanowire, the optical properties in a magnetic field can be tuned in very different ways.