Singular Density of States of Disordered Dirac Fermions in the Chiral Models

Details Singular Density of States of Disordered Dirac Fermions in the Chiral Models Singular Density of States of Disordered Dirac Fermions in the Chiral Models

2001-07-25

arxiv.org/abs/cond-mat/0107516v1

Phys.Rev.B65:033301,2002

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.65.033301

The Dirac fermion in the random chiral models is studied which includes the random gauge field model and the random hopping model. We focus on a connection between continuum and lattice models to give a clear perspective for the random chiral models. Two distinct structures of density of states (DoS) around zero energy, one is a power-law dependence on energy in the intermediate energy range and the other is a diverging one at zero energy, are revealed by an extensive numerical study for large systems up to $250\times 250$. For the random hopping model, our finding of the diverging DoS within very narrow energy range reconciles previous inconsistencies between the lattice and the continuum models.

Affiliated with

Also associated with

No associations

Rating

Singular Density of States of Disordered Dirac Fermions in the Chiral Models 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 Singular Density of States of Disordered Dirac Fermions in the Chiral Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Singular Density of States of Disordered Dirac Fermions in the Chiral Models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-288194