Coulomb-interacting Dirac fermions in disordered graphene

被引：49

作者：

Khveshchenko, D. V. ^{[1
]}

机构：

[1] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 16期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.74.161402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study such experimentally relevant characteristics of the Coulomb-interacting Dirac quasiparticles in disordered graphene as the quasiparticle width and density of states that can be probed by photoemission, magnetization, and tunneling measurements. We find that an interplay between the unscreened Coulomb interactions and pseudorelativistic quasiparticle kinematics can be best revealed in the ballistic regime, whereas in the diffusive limit the behavior is qualitatively similar to that of the ordinary two-dimensional electron gas with parabolic dispersion.

引用

页数：4

共 49 条

[1] Zero bias anomaly in the density of states of low-dimensional metals [J].

Bartosch, L ;

Kopietz, P .

EUROPEAN PHYSICAL JOURNAL B, 2002, 28 (01) :29-36

[2] Quasiparticle scattering and local density of states in graphite [J].

Bena, C ;

Kivelson, SA .

PHYSICAL REVIEW B, 2005, 72 (12)

[3] Ultrathin epitaxial graphite: 2D electron gas properties and a route toward graphene-based nanoelectronics [J].

Berger, C ;

Song, ZM ;

Li, TB ;

Li, XB ;

Ogbazghi, AY ;

Feng, R ;

Dai, ZT ;

Marchenkov, AN ;

Conrad, EH ;

First, PN ;

de Heer, WA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (52) :19912-19916

[4] Self-energy of a nodal fermion in a d-wave superconductor [J].

Chubukov, A. V. ;

Tsvelik, A. M. .

PHYSICAL REVIEW B, 2006, 73 (22)

[5]

Esquinazi P, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.024429

[6] CRITICAL-BEHAVIOR OF DISORDERED DEGENERATE SEMICONDUCTORS .1. MODELS, SYMMETRIES, AND FORMALISM [J].

FRADKIN, E .

PHYSICAL REVIEW B, 1986, 33 (05) :3257-3262

[7] THE ELECTRONIC-SPECTRUM OF FULLERENES FROM THE DIRAC-EQUATION [J].

GONZALEZ, J ;

GUINEA, F ;

VOZMEDIANO, MAH .

NUCLEAR PHYSICS B, 1993, 406 (03) :771-794

[8] Unconventional quasiparticle lifetime in graphite [J].

Gonzalez, J ;

Guinea, F ;

Vozmediano, MAH .

PHYSICAL REVIEW LETTERS, 1996, 77 (17) :3589-3592

[9] NON-FERMI LIQUID BEHAVIOR OF ELECTRONS IN THE HALF-FILLED HONEYCOMB LATTICE - (A RENORMALIZATION-GROUP APPROACH) [J].

GONZALEZ, J ;

GUINEA, F ;

VOZMEDIANO, MAH .

NUCLEAR PHYSICS B, 1994, 424 (03) :595-618

[10] Marginal-Fermi-liquid behavior from two-dimensional Coulomb interaction [J].

González, J ;

Guinea, F ;

Vozmediano, MAH .

PHYSICAL REVIEW B, 1999, 59 (04) :R2474-R2477

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