Minimal conductivity in graphene: interaction corrections and ultraviolet anomaly

Details Minimal conductivity in graphene: interaction corrections and ultraviolet anomaly Minimal conductivity in graphene: interaction corrections and ultraviolet anomaly

2007-09-27

arxiv.org/abs/0709.4245v3

Europhys. Lett. 83, 17005 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 1 figure; Reply to the Comment by I.F. Herbut, V. Juricic, O. Vafek, and M.J. Case, "Comment on "Minimal conductivity

Scientific paper

10.1209/0295-5075/83/17005

Conductivity of a disorder-free intrinsic graphene is studied to the first order in the long-range Coulomb interaction and is found to be \sigma=\sigma_0(1+0.01 g), where 'g' is the dimensionless ("fine structure") coupling constant. The calculations are performed using three different methods: i) electron polarization function, ii) Kubo formula for the conductivity, iii) quantum transport equation. Surprisingly, these methods yield different results unless a proper ultraviolet cut-off procedure is implemented, which requires that the interaction potential in the effective Dirac Hamiltonian is cut-off at small distances (large momenta).

Affiliated with

Also associated with

No associations

Rating

Minimal conductivity in graphene: interaction corrections and ultraviolet anomaly 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 Minimal conductivity in graphene: interaction corrections and ultraviolet anomaly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Minimal conductivity in graphene: interaction corrections and ultraviolet anomaly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-480478