Broad Peak in the d_{x^2-y^2} Superconducting Correlation Length as a Function of Hole Concentration in the Two-Dimensional t-J Model

Abstract

We have calculated high temperature series to 12th order in inverse temperature for singlet superconducting correlation functions of the 2D t-J model with s-, d_{x^2-y^2}- and d_xy-symmetry pairs. We find the correlation length for d_{x^2-y^2} pairing grows strongly with decreasing temperature and develops a broad peak as a function of doping at T/J=0.25 for J/t=0.4. The correlation lengths for s- and d_xy-symmetry remain small and do not display peaks. Antiferromagnetic spin fluctuations at low doping act to suppress the d_{x^2-y^2} and d_xy superconducting correlation lengths. Our results support the hypothesis that the strong electronic correlations found in the CuO_2 planes of high temperature superconductors are the origin of the superconducting order.

4 pages, 4 eps figures

References in corpus (8)

• Correlated Electrons in High Temperature Superconductors
• Band-structure trend in hole-doped cuprates and correlation with Tcmax
• Superconductivity in the two-dimensional t-J model
• Pairing Correlations in the Two-Dimensional Hubbard Model
• Violation of Luttinger's Theorem in the Two-Dimensional t-J Model
• d-Wave Pairing Correlation in the Two-Dimensional t-J Model
• Incipient order in the t-J model at high temperatures
• Development of superconducting correlation at low temperatures in the two-dimensional t-J model

Cited by in corpus (5)

• Numerical Linked-Cluster Algorithms. II. t-J models on the square lattice
• Mottness collapse and statistical quantum criticality
• Fidelity and superconductivity in two-dimensional t-J models
• Effects of Strong Correlations and Disorder in d-Wave Superconductors
• Entropy and thermopower in the 2D t-J model