Year: 1992
Type: article
Abstract: The angular dependence of J c was investigated for c-axis oriented sputtered YBCO films. The observed features can be described neither by a 2D- nor by a 3D-anisotropic Ginzburg-Landau theory. An intrinsic pinning mechanism, effective only within a critical angle theta c between the applied magnetic field and the copper oxide planes, has to be considered in order to describe the sharp and narrow peaks of J c at high fields and high temperatures. Neutron irradiation results also seem to be in favour of an intrinsic pinning model.
Authors: R M Schalk, H W Weber, Z H Barber, C E Davies, J E Evetts, R E Somekh, D H Kim
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2065714985