Effect of electron-electron interaction on the Fermi surface topology of doped graphene

被引:48
作者
Roldan, R. [1 ]
Lopez-Sancho, M. P. [1 ]
Guinea, F. [1 ]
机构
[1] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain
关键词
D O I
10.1103/PhysRevB.77.115410
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electron-electron interactions effects on the shape of the Fermi surface of doped graphene are investigated. The actual discrete nature of the lattice is fully taken into account. A pi-band tight-binding model, with nearest-neighbor hopping integrals, is considered. We calculate the self-energy corrections at zero temperature. Long and short-range Coulomb interactions are included. The exchange self-energy corrections for graphene preserve the trigonal warping of the Fermi surface topology, although rounding the triangular shape. The band velocity is renormalized to higher value. Corrections induced by a local Coulomb interaction, calculated by second-order perturbation theory, do deform anisotropically the Fermi surface shape. Results are compared to experimental observations and to other theoretical results.
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页数:9
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共 48 条
[11]   Many-body interaction effects in doped and undoped graphene: Fermi liquid versus non-Fermi liquid [J].
Das Sarma, S. ;
Hwang, E. H. ;
Tse, Wang-Kong .
PHYSICAL REVIEW B, 2007, 75 (12)
[12]   KEY FEATURES IN THE MEASURED BAND-STRUCTURE OF BI2SR2CACU2O8+DELTA - FLAT BANDS AT E(F) AND FERMI-SURFACE NESTING [J].
DESSAU, DS ;
SHEN, ZX ;
KING, DM ;
MARSHALL, DS ;
LOMBARDO, LW ;
DICKINSON, PH ;
LOESER, AG ;
DICARLO, J ;
PARK, CH ;
KAPITULNIK, A ;
SPICER, WE .
PHYSICAL REVIEW LETTERS, 1993, 71 (17) :2781-2784
[13]   THE ELECTRONIC-SPECTRUM OF FULLERENES FROM THE DIRAC-EQUATION [J].
GONZALEZ, J ;
GUINEA, F ;
VOZMEDIANO, MAH .
NUCLEAR PHYSICS B, 1993, 406 (03) :771-794
[14]   Renormalization group analysis of electrons near a vanHove singularity [J].
Gonzalez, J ;
Guinea, F ;
Vozmediano, MAH .
EUROPHYSICS LETTERS, 1996, 34 (09) :711-716
[15]   Unconventional quasiparticle lifetime in graphite [J].
Gonzalez, J ;
Guinea, F ;
Vozmediano, MAH .
PHYSICAL REVIEW LETTERS, 1996, 77 (17) :3589-3592
[16]   Marginal-Fermi-liquid behavior from two-dimensional Coulomb interaction [J].
González, J ;
Guinea, F ;
Vozmediano, MAH .
PHYSICAL REVIEW B, 1999, 59 (04) :R2474-R2477
[17]   Electron-electron correlation in graphite:: A combined angle-resolved photoemission and first-principles study [J].
Grueneis, A. ;
Attaccalite, C. ;
Pichler, T. ;
Zabolotnyy, V. ;
Shiozawa, H. ;
Molodtsov, S. L. ;
Inosov, D. ;
Koitzsch, A. ;
Knupfer, M. ;
Schiessling, J. ;
Follath, R. ;
Weber, R. ;
Rudolf, P. ;
Wirtz, L. ;
Rubio, A. .
PHYSICAL REVIEW LETTERS, 2008, 100 (03)
[18]   Zero-energy states and fragmentation of spin in the easy-plane antiferromagnet on a honeycomb lattice [J].
Herbut, Igor F. .
PHYSICAL REVIEW LETTERS, 2007, 99 (20)
[19]   Interactions and phase transitions on graphene's honeycomb lattice [J].
Herbut, Igor F. .
PHYSICAL REVIEW LETTERS, 2006, 97 (14)
[20]   Inelastic carrier lifetime in graphene [J].
Hwang, E. H. ;
Hu, Ben Yu-Kuang ;
Das Sarma, S. .
PHYSICAL REVIEW B, 2007, 76 (11)