Tc degradation in disordered cuprate superconductors

Ratan Lal

doi:10.1103/PhysRevB.51.640

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Tc degradation in disordered cuprate superconductors

Ratan Lal

DOI 10.1103/PhysRevB.51.640 · Physical Review B

T1

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Abstract

On the basis of the behavior of the coherence length of disordered cuprate superconductors, it has been found that in these systems there is a direct suppression of the effective pairing interaction between the carrier holes by the doped impurities. A phenomenological model has been set up to examine the effect of the suppression of the pairing interaction on the degradation of the superconducting transition temperature. It is argued that the direct suppression of the pairing interaction is a dominating source of Tc degradation in the cuprate superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La1.85Sr0.15Cu1-xMxO4-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2(Cu1-Mx)3O7-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2Ca(Cu1-Mx)2O8+y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Tl2Sr2Ca2Cu3O10+y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown