Title

Structural Properties of Ba2RCu3O7 High-Tc Superconductors

Document Type

Article

Publication Date

1-1-1987

Abstract

The crystal chemistry of several Ba2RCu3O7 high-Tc superconductors (R=Y,Pr,Sm,Eu,Gd,Dy,Ho,Er,Tm) has been studied by x-ray diffraction on twinned crystals. All samples except the Pr compound show superconductivity around 90 K. From the variation of the interatomic distances with different rare-earth ions, we infer the presence of a [CuO2-BaO-CuO--BaO-CuO2] building unit.

DOI

10.1103/PhysRevB.36.3617

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