Superconducting transition of high-Tc cuprates in a magnetic field

Autor(en)

W. Lang, P. Gehringer, E. Stangl, S. Proyer

Abstrakt

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(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Johannes Kepler Universität Linz, Universität Wien

Seiten

523-530

Anzahl der Seiten

8

Publikationsdatum

1999

ÖFOS 2012

103033 Supraleitung, 103009 Festkörperphysik, 103018 Materialphysik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/aa19915e-8b23-4162-8054-ad20ba7465b1