Wigner crystallization in a single and bilayer graphene
Strongly Correlated Electrons
2007-06-13 v1 Mesoscale and Nanoscale Physics
Abstract
We study the possibility of Wigner crystallization in both single- and and bi-layer graphene using a real space tight binding model. In addition to verifying our earlier prediction for single layer graphene, we predict that the bilayer graphene can undergo a Wigner crystal transition at low enough carrier density thus offering a possibility of tunable and bipolar Wigner crystal. We find that aside from the Coulomb interaction of the carriers of two layers that stabilizes the charge ordered state, so does the inter layer coupling.
Keywords
Cite
@article{arxiv.0706.1689,
title = {Wigner crystallization in a single and bilayer graphene},
author = {Hari P. Dahal and Tim O. Wehling and Kevin S. Bedell and Jian-Xin Zhu and A. V. Balatsky},
journal= {arXiv preprint arXiv:0706.1689},
year = {2007}
}