Title

Cayalo4 - New Low-Loss Substrate Material For Epitaxial-Growth Of Superconducting Thin-Films

Title - Alternative

Jpn. J. Appl. Phys. Part 2 - Lett.

Keywords

CAYAIO4; YBA2CU3O7-DELTA; TL2BA2CACU2O8; LOW-LOSS SUBSTRATE; LASER; ABLATION; MICROWAVE PROPERTY; INTERDIFFUSION; MICROWAVE; Physics, Applied

Abstract

A twin-free substrate material, CaYAlO4, was synthesized and used for the epitaxial growth of single crystal YBa2CU3O7-delta and Tl2Ba2CaCU2O8 thin films for the first time. The lattice parameters of ttus new substrate are a = b = 3.648 angstrom and c= 11.89 angstrom. The dielectric properties, similar to those of LaAlO3, are 20(dielectric constant) and 4 x 10(-5) (loss tangent) at 5 GHz and 77 K. Initial attempts at film growth on this substrate indicate degradation of both superconducting and microwave properties possibly due to interdiffusion.

Publication Title

Japanese Journal of Applied Physics Part 2-Letters

Volume

30

Issue/Number

12B

Publication Date

1-1-1991

Document Type

Article

Language

English

First Page

L2116

Last Page

L2119

WOS Identifier

WOS:A1991GX90800016

ISSN

0021-4922

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