Vertex corrections in antiferromagnetic spin-fluctuation theories

被引:28
作者
Chubukov, AV
Monthoux, P
Morr, DK
机构
[1] PL KAPITZA PHYS PROBLEMS INST, MOSCOW, RUSSIA
[2] FLORIDA STATE UNIV, DEPT PHYS, TALLAHASSEE, FL 32306 USA
[3] FLORIDA STATE UNIV, NATL HIGH MAGNEET FIELD LAB, TALLAHASSEE, FL 32306 USA
关键词
D O I
10.1103/PhysRevB.56.7789
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We clarify the physical origin of the discrepancy between recent purely perturbative and self-consistent calculations of the vertex correction in the spin-fermion model for cuprates. We argue that perturbative calculations substantially overestimate the strength of the vertex corrections at moderate couplings.
引用
收藏
页码:7789 / 7792
页数:4
相关论文
共 14 条
  • [1] CRITICAL-BEHAVIOR OF THE T=0 2K(F) DENSITY-WAVE PHASE-TRANSITION IN A 2-DIMENSIONAL FERMI-LIQUID
    ALTSHULER, BL
    IOFFE, LB
    MILLIS, AJ
    [J]. PHYSICAL REVIEW B, 1995, 52 (08) : 5563 - 5572
  • [2] Vortex corrections in antiferromagnetic spin fluctuation theories
    Amin, MHS
    Stamp, PCE
    [J]. PHYSICAL REVIEW LETTERS, 1996, 77 (14) : 3017 - 3020
  • [3] CHUBUKOV A, IN PRESS
  • [4] QUASI-PARTICLE SPECTRUM IN A NEARLY ANTIFERROMAGNETIC FERMI-LIQUID - SHADOW AND FLAT BANDS
    CHUBUKOV, AV
    [J]. PHYSICAL REVIEW B, 1995, 52 (06) : R3840 - R3843
  • [5] RENORMALIZED PERTURBATION-THEORY OF MAGNETIC INSTABILITIES IN THE 2-DIMENSIONAL HUBBARD-MODEL AT SMALL DOPING
    CHUBUKOV, AV
    FRENKEL, DM
    [J]. PHYSICAL REVIEW B, 1992, 46 (18): : 11884 - 11901
  • [6] KEY FEATURES IN THE MEASURED BAND-STRUCTURE OF BI2SR2CACU2O8+DELTA - FLAT BANDS AT E(F) AND FERMI-SURFACE NESTING
    DESSAU, DS
    SHEN, ZX
    KING, DM
    MARSHALL, DS
    LOMBARDO, LW
    DICKINSON, PH
    LOESER, AG
    DICARLO, J
    PARK, CH
    KAPITULNIK, A
    SPICER, WE
    [J]. PHYSICAL REVIEW LETTERS, 1993, 71 (17) : 2781 - 2784
  • [7] OBSERVATION OF AN EXTENDED VAN-HOVE SINGULARITY IN YBA2CU4O8 BY ULTRAHIGH-ENERGY RESOLUTION ANGLE-RESOLVED PHOTOEMISSION
    GOFRON, K
    CAMPUZANO, JC
    ABRIKOSOV, AA
    LINDROOS, M
    BANSIL, A
    DING, H
    KOELLING, D
    DABROWSKI, B
    [J]. PHYSICAL REVIEW LETTERS, 1994, 73 (24) : 3302 - 3305
  • [8] OBSERVATION OF A VANHOVE SINGULARITY IN BI2SR2CACU2O8+X WITH ANGLE-RESOLVED PHOTOEMISSION
    MA, J
    QUITMANN, C
    KELLEY, RJ
    ALMERAS, P
    BERGER, H
    MARGARITONDO, G
    ONELLION, M
    [J]. PHYSICAL REVIEW B, 1995, 51 (06): : 3832 - 3839
  • [9] Vertex corrections and two-loop pairing potential in nearly antiferromagnetic Fermi liquids
    Monthoux, P
    [J]. PHYSICAL REVIEW B, 1997, 55 (22): : 15261 - 15273
  • [10] NEARLY ANTIFERROMAGNETIC FERMI-LIQUID DESCRIPTION OF MAGNETIC SCALING AND SPIN-GAP BEHAVIOR
    MONTHOUX, P
    PINES, D
    [J]. PHYSICAL REVIEW B, 1994, 50 (21): : 16015 - 16022