Electrostatic Potential in High-Temperature Superconducting Cuprates: Extended Ginzburg-Landau Theory

Table 1

Material parameters for YBCO.

Critical temperature	𝑇𝑐	90 K
Debye temperature	Θ𝐷	440 K
Coupling parameter	𝜆	3
Coulomb pseudo potential	𝜇^∗	0.2
Coefficient of specific heat	𝛾	302JK^−2m^−3
Hole density	𝑛	5×10^27m^−3
Logarithmic derivative	𝜕𝐷0/𝜕𝐸𝐹	7.5×10^19J^−1
Density of states	𝐷	2.41×10^47J^−1m^−3
Bare density	𝐷0	0.602×10^47J^−1m^−3
BCS interaction	𝑉	4.98×10^−47Jm^3
Condensation energy	𝜖con	5.45×10^5Jm^−3
Coefficient (A6)	𝜕𝛾/𝜕𝑛	8.23×10^−26J
Coefficient (A11)	𝜕𝜖con/𝜕𝑛	16.02×10^−23J
Coefficient of 𝐶1	𝜕ln𝜖con/𝜕ln𝑛	1.47
Coefficient of 𝐶2	𝜕ln𝛾/𝜕ln𝑛	1.4