Correlation between Charge Inhomogeneities and Structure in Graphene and Other Electronic Crystalline Membranes
Materials Science
2016-09-08 v4 Mesoscale and Nanoscale Physics
Superconductivity
High Energy Physics - Theory
Nuclear Theory
Abstract
Only one atom thick and not inclined to lattice defects, graphene represents the ultimate crystalline membrane. However, its structure reveals unique features not found in other crystalline membranes, in particular the existence of ripples with wavelength of 100-300 Angstroms. Here, I trace the origin of this difference to the free electrons in the membrane. The deformation energy of the lattice creates a coupling between charge fluctuations and the structure, resulting in ripples on the membrane, correlated with charge inhomogeneities. In graphene this mechanism reproduces the experimental result for both charge puddles and ripples.
Keywords
Cite
@article{arxiv.0903.5012,
title = {Correlation between Charge Inhomogeneities and Structure in Graphene and Other Electronic Crystalline Membranes},
author = {Doron Gazit},
journal= {arXiv preprint arXiv:0903.5012},
year = {2016}
}
Comments
Accepted for publication in PRB as Rapid Communication