| Broken-symmetry states of Dirac fermions in graphene with a partially filled high Landau level. | |
| | |
MedLine Citation:
|
PMID: 18517810 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
|
We report on numerical study of the Dirac fermions in partially filled N=3 Landau level (LL) in graphene. At half-filling, the equal-time density-density correlation function displays sharp peaks at nonzero wave vectors +/-q*. Finite-size scaling shows that the peak value grows with electron number and diverges in the thermodynamic limit, which suggests an instability toward a charge density wave. A symmetry broken stripe phase is formed at large system size limit, which is robust against perturbation from disorder scattering. Such a quantum phase is experimentally observable through transport measurements. Associated with the special wave functions of the Dirac LL, both stripe and bubble phases become possible candidates for the ground state of the Dirac fermions in graphene with lower filling factors in the N=3 LL. |
| | |
Authors:
|
Hao Wang; D N Sheng; L Sheng; F D M Haldane |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2008-03-20 |
Journal Detail:
|
Title: Physical review letters Volume: 100 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2008 Mar |
Date Detail:
|
Created Date: 2008-06-03 Completed Date: 2008-06-19 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
|
Languages: eng Pagination: 116802 Citation Subset: - |
Affiliation:
|
Department of Physics and Astronomy, California State University, Northridge, CA 91330, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Activation of Al2O3 by a long-ranged chemical bond mechanism.
Next Document: Effect of Landau level mixing on braiding statistics.