SPATIAL FLUCTUATIONS OF THE ORDER PARAMETER IN A DISORDERED SUPERCONDUCTOR WITH p-WAVE PAIRING

2002 ◽  
Vol 16 (03) ◽  
pp. 453-461 ◽  
Author(s):  
GRZEGORZ LITAK
Keyword(s):  
Perturbation Method ◽  
Hubbard Model ◽  
Order Parameter ◽  
Pairing Symmetry ◽  
P Wave ◽  
Real Solution ◽  
The Real ◽  
Wave Pairing ◽  
Spatial Fluctuations ◽  
Effect Of Disorder

The effect of nonmagnetic disorder on the pairing amplitude is studied by means of a perturbation method. Using an extended one band Hubbard model with an intersite attraction we analyze various solutions of p-wave pairing symmetry and discuss their instability calculating fluctuations of order parameter. The model is applied to describe the effect of disorder in Sr2RuO4. The results shows that the real solution with line nodes can be favoured by disorder.

Stability ofs+id-Wave Pairing State in the 2-D Extended Hubbard Model

1995 ◽  
Vol 64 (3) ◽  
pp. 922-926 ◽  
Author(s):  
Hiroki Tsuchiura ◽  
Yukio Tanaka ◽  
Yasunari Ushijima
Keyword(s):  
Hubbard Model ◽  
Extended Hubbard Model ◽  
Pairing State ◽  
Wave Pairing

p-wave pairing in metals

1977 ◽  
Vol 15 (3) ◽  
pp. 1395-1398 ◽  
Author(s):  
I. F. Foulkes ◽  
B. L. Gyorffy
Keyword(s):  
P Wave ◽  
Wave Pairing

ROLE OF HYBRIDIZATION IN THE SUPERCONDUCTING PROPERTIES OF AN EXTENDED d–p HUBBARD MODEL

2004 ◽  
Vol 18 (02) ◽  
pp. 241-252 ◽  
Author(s):  
E. J. CALEGARI ◽  
S. G. MAGALHÃES ◽  
A. A. GOMES
Keyword(s):  
Hubbard Model ◽  
Order Parameter ◽  
Superconducting Order Parameter ◽  
Superconducting Properties

In this work the variational Roth's approach previously developed by the present authors to describe cuprate systems is extended to include the superconducting properties. We extend the Beenen and Edwards approach by including the d–p hybridization. The role of the d–p hybridization in modifying the values of superconducting order parameter is then studied in terms of the adopted values of the parameters defining the Hamiltonian of the system.

scholarly journals Plaquette versus ordinary d -wave pairing in the t′ -Hubbard model on a width-4 cylinder

2020 ◽  
Vol 102 (4) ◽  
Author(s):  
Chia-Min Chung ◽  
Mingpu Qin ◽  
Shiwei Zhang ◽  
Ulrich Schollwöck ◽  
Steven R. White ◽  
...  
Keyword(s):  
Hubbard Model ◽  
Wave Pairing ◽  
D Wave
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