Quantum critical scaling in graphene

TitleQuantum critical scaling in graphene
Publication TypeJournal Article
Year of Publication2007
AuthorsSheehy DE, Schmalian J
Journal TitlePhysical Review Letters
Volume99
Pages226803
Date PublishedNov
Type of ArticleArticle
ISBN Number0031-9007
Accession NumberISI:000251327500050
Keywordsfermi-liquid behavior, temperature
Abstract

We show that the emergent relativistic symmetry of electrons in graphene near its quantum critical point (QCP) implies a crucial importance of the Coulomb interaction. We derive scaling laws, valid near the QCP, that dictate the nontrivial magnetic and charge response of interacting graphene. Our analysis yields numerous predictions for how the Coulomb interaction will be manifested in experimental observables such as the diamagnetic response and electronic compressibility.

DOI10.1103/PhysRevLett.99.226803
Alternate JournalPhys. Rev. Lett.