Strong coupling d-wave superconductivity stabilized by antiferromagnetic spin fluctuations

1990 ◽  
Vol 165-166 ◽  
pp. 319-320 ◽  
Author(s):  
E. Schachinger ◽  
J.P. Carbotte
Keyword(s):  
Strong Coupling ◽  
Spin Fluctuations ◽  
Antiferromagnetic Spin ◽  
D Wave

scholarly journals Standard Behaviour of Bi2Sr2CaCu2O8+δ Overdoped

2021 ◽  
Vol 6 (2) ◽  
pp. 13
Author(s):  
Giovanni Alberto Ummarino
Keyword(s):  
Experimental Data ◽  
Critical Temperature ◽  
Excellent Agreement ◽  
Free Parameter ◽  
Theoretical Calculations ◽  
Spin Fluctuations ◽  
Superconducting Gap ◽  
Eliashberg Theory ◽  
Antiferromagnetic Spin ◽  
D Wave

I calculated the critical temperature and superconducting gap in the framework of one band d wave Eliashberg theory with only one free parameter in order to reproduce the experimental data relative to Bi2Sr2CaCu2O8+δ(BSCCO) in the overdoped regime. The theoretical calculations are in excellent agreement with the experimental data and indicate that cuprates in the overdoped regime are well described by standard d-wave Eliashberg theory with coupling provided by antiferromagnetic spin fluctuations.

NQR and NMR in High Tc Superconductors

1992 ◽  
Vol 47 (1-2) ◽  
pp. 7-11 ◽  
Author(s):  
K. Asayama ◽  
Y. Kitaoka ◽  
G.-q. Zheng
Keyword(s):  
High Temperature ◽  
Transition Temperature ◽  
Low Temperature ◽  
Spin Fluctuations ◽  
Superconducting Transition ◽  
High Tc Superconductors ◽  
High Tc ◽  
Pairing Correlations ◽  
Antiferromagnetic Spin ◽  
D Wave

AbstractRecent NQR and NMR experiments on La2-xSrxCuO4 , YBa2Cu3O7 , Tl2Ba2CuO6+y , and other compounds are reviewed. The antiferromagnetic spin fluctuations decrease in the order of La, Y, T1 compounds. In the normal state the T-dependence of (T1T)-1 is considered to follow the Curie- Weiss law at high temperature and the (Ti 7") = const law at low temperature. The T dependence of 1/T1 below Tc suggests strongly d-wave pairing. Correlations of the NQR frequency of 63Cu and 17O with the antiferromagnetic spin fluctuations and the superconducting transition temperature are discussed.

scholarly journals Low-energy antiferromagnetic spin fluctuations limit the coherent superconducting gap in cuprates

2018 ◽  
Vol 98 (22) ◽  
Author(s):  
Yangmu Li ◽  
Ruidan Zhong ◽  
M. B. Stone ◽  
A. I. Kolesnikov ◽  
G. D. Gu ◽  
...  
Keyword(s):  
Low Energy ◽  
Spin Fluctuations ◽  
Superconducting Gap ◽  
Antiferromagnetic Spin

NMR evidence for antiferromagnetic spin fluctuations in superconducting λ-(BETS)2GaCl4

2003 ◽  
Vol 137 (1-3) ◽  
pp. 1297-1298 ◽  
Author(s):  
S. Takagi ◽  
D. Maruta ◽  
H. Sasaki ◽  
H. Uozaki ◽  
H. Tsuchiy ◽  
...  
Keyword(s):  
Spin Fluctuations ◽  
Antiferromagnetic Spin
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