Growth and superconductivity of c-axis in-plane aligned YBa2Cu3O7−x films fabricated by the self-template method

12 December 1994

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 65 (24) , 3129-3131
https://doi.org/10.1063/1.112458

Abstract

In‐plane aligned a‐axis oriented and [110] oriented Y₁Ba₂Cu₃O_7−x (YBCO) films exhibiting different anisotropic ratio in resistivity were fabricated, respectively, on LaSrGaO₄[100] and SrTiO₃[110] substrates by the self‐template method. The anisotropic properties of the a‐axis films as studied by resistivity and thermoelectric power measurements are believed to reflect the anisotropy intrinsic to the YBCO system. The measured anisotropic properties of the a‐axis films exhibiting anisotropy ratio ≳8 in resistivity and of the as‐deposited [110] films were found to be related to cracks and the rough surface of these films. Furthermore, high‐resolution microscopy revealed that a‐axis film growth by our self‐template method is dependent on the kinetics of the deposition process.

Keywords

This publication has 10 references indexed in Scilit:

Direct high-resolution electron microscopy observations of sputtered a-axis oriented YBa2Cu3O7 films prepared by a self-template method on SrTiO3 substrates
Applied Physics Letters, 1994
Comparison of crystalline and superconducting properties of sputtered a-axis oriented YBCO films on MgO and SrTiO3 substrates
Physica C: Superconductivity and its Applications, 1994
Atomic graphoepitaxy: A growth model for c-axis in-plane-aligned, a-axis oriented YBa2Cu3Ox thin films
Applied Physics Letters, 1994
In-plane alignment of a-axis oriented YBa2Cu3Ox thin films
Applied Physics Letters, 1993
Effects of target and template layer on the properties of highly crystalline superconducting a-axis films of Y1Ba2Cu3O7−x by DC-sputtering
Physica C: Superconductivity and its Applications, 1993
Synthesis and properties of a-axis and b-axis oriented GdBa2Cu3O7−δ high T c thin films
Applied Physics Letters, 1992
a-axis oriented growth of YBa2Cu3O7−y films on LaSrGaO4(100) substrates
Applied Physics Letters, 1992
In-plane thermoelectric power of untwinned ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$
Physical Review B, 1992
Oxygen content and disorder in a-axis oriented YBa2Cu3O7−δ thin films
Applied Physics Letters, 1992
Microstructure studies of a-axis oriented YBa2Cu3O7−x-PrBa2Cu3O7−y heterostructures
Physica C: Superconductivity and its Applications, 1990