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arXiv · cond-mat/9704190

Predicion of charge separation in GaAs/AlAs cylindrical Russian Doll nanostructures

Jeongnim Kim·Lin-Wang Wang·Alex Zunger
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Abstract

We have contrasted the quantum confinement of (i) multiple quantum wells of flat GaAs and AlAs layers, i.e. $(\GaAs)_{m}/(\AlAs)_n/(\GaAs)_p/(\AlAs)_q$, with (ii) ``cylindrical Russian Dolls'' -- an equivalent sequence of wells and barriers arranged as concentric wires. Using a pseudopotential plane-wave calculation, we identified theoretically a set of numbers ($m,n,p$ and $q$) such that charge separation can exist in ``cylindrical Russian Dolls'': the CBM is localized in the inner GaAs layer, while the VBM is localized in the outer GaAs layer.

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Jeongnim Kim, Lin-Wang Wang, Alex Zunger. 1997-04-23. Predicion of charge separation in GaAs/AlAs cylindrical Russian Doll nanostructures. https://doi.org/10.1103/physrevb.56.r15541

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