Proximity of the Superconducting Dome and the Quantum Critical Point in the Two-Dimensional Hubbard Model

被引：49

作者：

Yang, S. -X. ^{[1
]}

Fotso, H. ^{[1
]}

Su, S. -Q. ^{[1
,2
]}

Galanakis, D. ^{[1
]}

Khatami, E. ^{[3
]}

She, J. -H. ^{[4
]}

Moreno, J. ^{[1
]}

Zaanen, J. ^{[4
]}

Jarrell, M. ^{[1
]}

机构：

[1] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[2] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Comp Sci & Math Div, Oak Ridge, TN 37831 USA

[3] Georgetown Univ, Dept Phys, Washington, DC 20057 USA

[4] Leiden Univ, Inst Lorentz Theoret Phys, NL-2300 RA Leiden, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.106.047004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use the dynamical cluster approximation to understand the proximity of the superconducting dome to the quantum critical point in the two-dimensional Hubbard model. In a BCS formalism, T(c) may be enhanced through an increase in the d-wave pairing interaction (V(d)) or the bare pairing susceptibility (chi(0d)). At optimal doping, where Vd is revealed to be featureless, we find a power-law behavior of chi(0d)(omega = 0), replacing the BCS log, and strongly enhanced T(c). We suggest experiments to verify our predictions.

引用

页数：4

共 19 条

[1] What lies beneath the dome? [J].

Broun, D. M. .

NATURE PHYSICS, 2008, 4 (03) :170-172

[2] EFFECTIVE PARTICLE-PARTICLE INTERACTION IN THE 2-DIMENSIONAL HUBBARD-MODEL [J].

BULUT, N ;

SCALAPINO, DJ ;

WHITE, SR .

PHYSICAL REVIEW B, 1993, 47 (10) :6157-6160

[3] Non-Fermi-liquid behavior and d-wave superconductivity near the charge-density-wave quantum critical point [J].

Castellani, C ;

DiCastro, C ;

Grilli, M .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1997, 103 (02) :137-144

[4] Avoided criticality in near-optimally doped high-temperature superconductors [J].

Haule, Kristjan ;

Kotliar, Gabriel .

PHYSICAL REVIEW B, 2007, 76 (09)

[5] Nonlocal dynamical correlations of strongly interacting electron systems [J].

Hettler, MH ;

Tahvildar-Zadeh, AN ;

Jarrell, M ;

Pruschke, T ;

Krishnamurthy, HR .

PHYSICAL REVIEW B, 1998, 58 (12) :R7475-R7479

[6] MONTE-CARLO METHOD FOR MAGNETIC-IMPURITIES IN METALS [J].

HIRSCH, JE ;

FYE, RM .

PHYSICAL REVIEW LETTERS, 1986, 56 (23) :2521-2524

[7] Bayesian inference and the analytic continuation of imaginary-time quantum Monte Carlo data [J].

Jarrell, M ;

Gubernatis, JE .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1996, 269 (03) :133-195

[8] Quantum Monte Carlo algorithm for nonlocal corrections to the dynamical mean-field approximation [J].

Jarrell, M ;

Maier, T ;

Huscroft, C ;

Moukouri, S .

PHYSICAL REVIEW B, 2001, 64 (19)

[9] Phase diagram of the Hubbard model: Beyond the dynamical mean field [J].

Jarrell, M ;

Maier, T ;

Hettler, MH ;

Tahvildarzadeh, AN .

EUROPHYSICS LETTERS, 2001, 56 (04) :563-569

[10] Quantum criticality due to incipient phase separation in the two-dimensional Hubbard model [J].

Khatami, E. ;

Mikelsons, K. ;

Galanakis, D. ;

Macridin, A. ;

Moreno, J. ;

Scalettar, R. T. ;

Jarrell, M. .

PHYSICAL REVIEW B, 2010, 81 (20)

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