scholarly journals Effect of disorder on charge-density wave and superconducting order in the half-filled attractive Hubbard model

1997 ◽  
Vol 55 (2) ◽  
pp. 1185-1193 ◽  
Author(s):  
C. Huscroft ◽  
R. T. Scalettar
Keyword(s):  
Hubbard Model ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Effect Of Disorder ◽  
Attractive Hubbard Model

scholarly journals Superconductivity in the doped Hubbard model and its interplay with next-nearest hopping t′

Science ◽  
2019 ◽  
Vol 365 (6460) ◽  
pp. 1424-1428 ◽  
Author(s):  
Hong-Chen Jiang ◽  
Thomas P. Devereaux
Keyword(s):  
Hubbard Model ◽  
Charge Density ◽  
Spin Density ◽  
Charge Density Wave ◽  
Large Scale ◽  
Nearest Neighbor ◽  
High Temperature Superconductivity ◽  
Density Wave ◽  
Spin Density Wave ◽  
Hole Doping

The Hubbard model is widely believed to contain the essential ingredients of high-temperature superconductivity. However, proving definitively that the model supports superconductivity is challenging. Here, we report a large-scale density matrix renormalization group study of the lightly doped Hubbard model on four-leg cylinders at hole doping concentration δ = 12.5%. We reveal a delicate interplay between superconductivity and charge density wave and spin density wave orders tunable via next-nearest neighbor hopping t′. For finite t′, the ground state is consistent with a Luther-Emery liquid with power-law superconducting and charge density wave correlations associated with half-filled charge stripes. In contrast, for t′ = 0, superconducting correlations fall off exponentially, whereas charge density and spin density modulations are dominant. Our results indicate that a route to robust long-range superconductivity involves destabilizing insulating charge stripes in the doped Hubbard model.

EFFECT OF DISORDER ON THE CHARGE DENSITY WAVE TRANSITIONS AND TRANSPORT IN ORTHORHOMBIC TaS3

1983 ◽  
Vol 44 (C3) ◽  
pp. C3-1753-C3-1756 ◽  
Author(s):  
Pei-Ling Hsieh ◽  
F. de Czito ◽  
A. Janossy ◽  
G. Grüner
Keyword(s):  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Effect Of Disorder
Sign in / Sign up

Export Citation Format

Share Document