Piezoelectricity: Quantized Charge Transport Driven by Adiabatic Deformations
Condensed Matter
2009-10-28 v4
Abstract
We study the (zero temperature) quantum piezoelectric response of Harper-like models with broken inversion symmetry. The charge transport in these models is related to topological invariants (Chern numbers). We show that there are arbitrarily small periodic modulations of the atomic positions that lead to nonzero charge transport for the electrons.
Cite
@article{arxiv.cond-mat/9609227,
title = {Piezoelectricity: Quantized Charge Transport Driven by Adiabatic Deformations},
author = {J. E. Avron and J. Berger and Y. Last},
journal= {arXiv preprint arXiv:cond-mat/9609227},
year = {2009}
}
Comments
Latex, letter. Replaced version with minor change in style. 1 fig