Spontaneous vs. piezoelectric polarization in III-V nitrides: conceptual aspects and practical consequences
arXiv:cond-mat/9908087 · doi:10.1002/(SICI)1521-3951(199911)216:1<391::AID-PSSB391>3.0.CO;2-K
Abstract
Macroscopic polarization plays a major role in determining the optical and electrical properties of nitride nanostructures via polarization-induced built-in electrostatic fields. While currently fashionable, this field of endeavour is still by far in its early infancy. Here we contribute some clarifications on the conceptual issues involved in determining built-in fields in III-V nitride nanostructures, sorting out in particular the roles of spontaneous and piezoelectric polarization.
RevTeX 5 pages, 3 embedded figures. to appear in phys. status solidi
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