Huge built-in electric fields have been predicted to exist in wurtzite III-V nitrides thin films and multilayers. Such fields originate from heterointerface discontinuities of the macroscopic bulk polarization of the nitrides. Here we discuss the background theory, the role of spontaneous polarization in this context, and the practical implications of built-in polarization fields in nitride nanostructures. To support our arguments, we present detailed self-consistent tight-binding simulations of typical nitride QW structures in which polarization effects are dominant.
@article{arxiv.cond-mat/9905186,
title = {Effects of macroscopic polarization in III-V nitride multi-quantum-wells},
author = {V. Fiorentini and F. Bernardini and F. Della Sala and A. Di Carlo and P. Lugli},
journal= {arXiv preprint arXiv:cond-mat/9905186},
year = {2009}
}
Comments
11 pages, 9 figures, uses revtex/epsf. submitted to PRB