Superconducting transition of high-Tc cuprates in a magnetic field

Author(s)
W. Lang, P. Gehringer, E. Stangl, S. Proyer
Abstract

The influence of a magnetic field on the shape of the superconducting transition
is dramatically different in high temperature superconductors as compared to
conventional superconductors. A consistent description of these unconventional
phenomena is crucial for the design of practical applications of the cuprate
superconductors. We report measurements of the superconducting transition in
c-axis oriented TmBa2Cu3O7-δ and TmBaSrCu3O7-δ thin films In magnetlc fields
up to 13 T, applied in the transverse (B||c) and longitudinal (B˪c) directions. The
upper part of the transition is dominated by critical order parameter fluctuations
and the characteristic "fan-shape" of the resistivity curves can be quantitatively
described by a recent anisotropic renormalized fluctuation theory.

Organisation(s)
Electronic Properties of Materials
External organisation(s)
Johannes Kepler Universität Linz, Universität Wien
Pages
523-530
No. of pages
8
Publication date
1999
Austrian Fields of Science 2012
Superconductivity, Solid state physics, Materials physics
Keywords
Portal url
https://ucris.univie.ac.at/portal/en/publications/superconducting-transition-of-hightc-cuprates-in-a-magnetic-field(aa19915e-8b23-4162-8054-ad20ba7465b1).html