Plasmon theory of high-Tc superconductivity

Shi-Min Cui; Chien-Hua Tsai

doi:10.1103/PhysRevB.44.12500

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Plasmon theory of high-Tc superconductivity

Shi-Min Cui, Chien-Hua Tsai

DOI 10.1103/PhysRevB.44.12500 · Physical Review B

T1

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Abstract

We present here a plasmon theory of high-Tc superconductivity. Some specific features of our theory are that the effect of layered or superlattice structure is fully taken into account and that plasma oscillations and the screened effective interaction between two charged carriers is studied on the basis of a tight-binding model. With an analysis of the gap equation and employing Gaussian functions for the various relevant atomic orbitals, we have evaluated numerically the superconducting critical temperatures of the La-, Bi-, and Tl-based oxides with very encouraging results.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	14	Pressure not reported	unknown
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	84	Pressure not reported	unknown
Bi2Sr2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	104	Pressure not reported	unknown