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J Phys Condens Matter. 2014 Mar 5;26(9):095501. doi: 10.1088/0953-8984/26/9/095501. Epub 2014 Feb 12.

Electronic and optical properties of core-shell nanowires in a magnetic field.

Author information

1
Department of Physics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium. Department of Condensed Matter Physics and Material Sciences, S N Bose National Centre for Basic Sciences, Sector-III, Block-JD, Salt Lake, Kolkata-700 098, India.

Abstract

The electronic and optical properties of zincblende nanowires are investigated in the presence of a uniform magnetic field directed along the [001] growth direction within the k · p method. We focus our numerical study on core-shell nanowires consisting of the III-V materials GaAs, Al(x)Ga(1-x)As and (Al(y)Ga(1-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.

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