Competition Between Antiferromagnetic and Charge-Density-Wave Order in the Half-Filled Hubbard-Holstein Model

被引：63

作者：

Nowadnick, E. A. ^{[1
,2
]}

Johnston, S. ^{[2
,3
,4
]}

Moritz, B. ^{[2
,5
,6
]}

Scalettar, R. T. ^{[7
]}

Devereaux, T. P. ^{[2
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[2] SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Stanford, CA 94305 USA

[3] IFW Dresden, Inst Theoret Solid State Phys, D-01069 Dresden, Germany

[4] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

[5] Univ N Dakota, Dept Phys & Astrophys, Grand Forks, ND 58202 USA

[6] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA

[7] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 24期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ELECTRON-PHONON MODEL; SUPERCONDUCTIVITY;

D O I：

10.1103/PhysRevLett.109.246404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a determinant quantum Monte Carlo study of the competition between instantaneous on-site Coulomb repulsion and retarded phonon-mediated attraction between electrons, as described by the two-dimensional Hubbard-Holstein model. At half filling, we find a strong competition between antiferromagnetism (AFM) and charge-density-wave (CDW) order. We demonstrate that a simple picture of AFM-CDW competition that incorporates the phonon-mediated attraction into an effective-U Hubbard model requires significant refinement. Specifically, retardation effects slow the onset of charge order so that CDW order remains absent even when the effective U is negative. This delay opens a window where neither AFM nor CDW order is well established and where there are signatures of a possible metallic phase.

引用

页数：5

共 50 条

[21] Spin and charge modulations of a half-filled extended Hubbard model
Philoxene, Loic
Vu Hung Dao
Fresard, Raymond
PHYSICAL REVIEW B, 2022, 106 (23)
[22] Tuning the bond-order wave phase in the half-filled extended Hubbard model
Kumar, Manoranjan
Ramasesha, S.
Soos, Z. G.
PHYSICAL REVIEW B, 2009, 79 (03):
[23] Incommensurate charge-density waves in the adiabatic Hubbard-Holstein model
Mastropietro, V
PHYSICAL REVIEW B, 2002, 65 (07) : 1 - 12
[24] PAIRING AND CHARGE-DENSITY-WAVE CORRELATIONS IN THE HOLSTEIN MODEL AT HALF-FILLING
MARSIGLIO, F
PHYSICAL REVIEW B, 1990, 42 (04): : 2416 - 2424
[25] Excitation spectra and spin gap of the half-filled Holstein-Hubbard model
Hohenadler, Martin
Assaad, Fakher F.
PHYSICAL REVIEW B, 2013, 87 (07)
[26] Existence of an intervening metallic phase at the transition region of the charge-density-wave phase and the spin-density-wave phase in the 1-D Hubbard-Holstein model
Malik, Mohammed Zahid
Mukhopadhyay, Soma
Chatterjee, Ashok
ADVANCES IN BASIC SCIENCES (ICABS 2019), 2019, 2142
[27] Possibility of a metallic phase in the charge-density-wave-spin-density-wave crossover region in the one-dimensional Hubbard-Holstein model at half filling
Takada, Y
Chatterjee, A
PHYSICAL REVIEW B, 2003, 67 (08):
[28] Precursor of antiferromagnetic bands in the half-filled two-dimensional Hubbard model
Kyung, B
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1999, 13 (27): : 3183 - 3192
[29] CHARGE-ORDERED SOLUTION OF THE HALF-FILLED HUBBARD-MODEL
RICHTER, A
MIZIA, J
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1979, 92 (02): : 519 - 523
[30] Magnetic and charge susceptibilities in the half-filled triangular lattice Hubbard model
Li, Shaozhi
Gull, Emanuel
PHYSICAL REVIEW RESEARCH, 2020, 2 (01):

← 1 2 3 4 5 →