Critical Behavior in Graphene with Coulomb Interactions

Details Critical Behavior in Graphene with Coulomb Interactions Critical Behavior in Graphene with Coulomb Interactions

2009-09-22

arxiv.org/abs/0909.4076v2

Phys. Rev. Lett. 104, 186401 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

final version to be published on PRL

Scientific paper

10.1103/PhysRevLett.104.186401

We demonstrate that in the presence of Coulomb interactions, electrons in graphene behave like a critical system, supporting power law correlations with interaction-dependent exponents. An asymptotic analysis shows that the origin of this behavior lies in particle-hole scattering, for which the Coulomb interaction induces anomalously close approaches. With increasing interaction strength the relevant power law changes from real to complex, leading to an unusual instability characterized by a complex-valued susceptibility in the thermodynamic limit. Measurable quantities, as well as the connection to classical two dimensional systems, are discussed.

Affiliated with

Also associated with

No associations

Rating

Critical Behavior in Graphene with Coulomb Interactions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Critical Behavior in Graphene with Coulomb Interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical Behavior in Graphene with Coulomb Interactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-180858