Model for the magnetoresistance and Hall coefficient of inhomogeneous graphene

Details Model for the magnetoresistance and Hall coefficient of inhomogeneous graphene Model for the magnetoresistance and Hall coefficient of inhomogeneous graphene

2008-12-08

arxiv.org/abs/0812.1577v1

PhysRevB.79.165408 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevB.79.165408

We show that when bulk graphene breaks into n-type and p-type puddles, the in-plane resistivity becomes strongly field dependent in the presence of a perpendicular magnetic field, even if homoge- neous graphene has a field-independent resistivity. We calculate the longitudinal resistivity \rho_{xx} and Hall resistivity \rho_{xy} as a function of field for this system, using the effective-medium approximation. The conductivity tensors of the individual puddles are calculated using a Boltzmann approach suit- able for the band structure of graphene near the Dirac points. The resulting resistivity agrees well with experiment, provided that the relaxation time is weakly field-dependent. The calculated Hall resistivity has the sign of the majority carrier and vanishes when there are equal number of n and p type puddles.

Affiliated with

Also associated with

No associations

Rating

Model for the magnetoresistance and Hall coefficient of inhomogeneous graphene 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 Model for the magnetoresistance and Hall coefficient of inhomogeneous graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Model for the magnetoresistance and Hall coefficient of inhomogeneous graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-281507