Superlattices of high-Tc superconductors

Shi-Min Cui; Chien-Hua Tsai

doi:10.1103/PhysRevB.42.8615

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Superlattices of high-Tc superconductors

Shi-Min Cui, Chien-Hua Tsai

DOI 10.1103/PhysRevB.42.8615 · Physical Review B

T1

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Abstract

Our plasma theory of superlattices of superconducting oxides in a tight-binding random-phase approximation (TBRPA) has been extended to the generalized random approximation for tight-binding superlattices (TBGRPA). We find that there is no important difference between TBGRPA and TBRPA. The superconducting transition temperatures Tc of the mixed Bi-Tl oxide superlattices are shown to depend predominantly on the maximum number of successive CuO2 layers within a supercell.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
DyBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown