Die u:cris Detailansicht:
Fluctuation-induced anisotropic magnetoconductivity in oxygen-deficient YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> thin films
- Autor(en)
- W. Göb, W. Lang, W. Kula, R. Sobolewski
- Abstrakt
We report on measurements of both the longitudinal and transverse magnetoresistivity (MR) of oxygen-reduced YBa/sub 2/Cu/sub 3/O/sub 7- delta / (YBCO) thin films with critical temperatures between T/sub c/=55 K and T/sub c/=89 K. We find the MR solely caused by the suppression of superconducting fluctuations by a magnetic field. In fully oxygenated samples both the Aslamazov-Larkin process (AL) and another, presumably the Maki-Thompson process (MT), contribute to the MR. In oxygen-deficient samples the MT process unambiguously is absent, thus indicating an unconventional (non-s-wave) pairing symmetry in YBCO.
- Organisation(en)
- Elektronische Materialeigenschaften
- Journal
- Superlattices and Microstructures
- Band
- 21
- Seiten
- 345-348
- Anzahl der Seiten
- 4
- ISSN
- 0749-6036
- DOI
- https://doi.org/10.1006/spmi.1996.0395
- Publikationsdatum
- 1997
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103018 Materialphysik
- Schlagwörter
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/84be9cf3-4ac1-4d79-85e6-0fcd54d6d1cd