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Proceedings Paper

Fluctuation effects in the magnetic penetration depth of high-Tc films
Author(s): Thomas R. Lemberger; Eric R. Ulm; K. M. Paget; Vladimir C. Matijasevic
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Paper Abstract

We do not find evidence for strong fluctuation effects in the magnetic penetration depth of films of YBCO. While in YBCO crystals it has been found that (lambda) -3(T) is linear in T below Tc over a range of temperatures from 5K to 15K, (lambda) -2(T) is linear over a range of several degrees K just below Tc in YBCO and SmBCO films with very sharp transitions. At low temperatures, we find a T-linear behavior in (lambda) (T) in pure YBCO and SmBCO films. However, we do not find evidence that the T-linear behavior is due to thermal phase fluctuations which should increase in strength as (lambda) (0) increases.

Paper Details

Date Published: 5 July 1996
PDF: 6 pages
Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); doi: 10.1117/12.250283
Show Author Affiliations
Thomas R. Lemberger, The Ohio State Univ. (United States)
Eric R. Ulm, The Ohio State Univ. (United States)
K. M. Paget, The Ohio State Univ. (United States)
Vladimir C. Matijasevic, Delft Univ. of Technology (Netherlands)


Published in SPIE Proceedings Vol. 2697:
Oxide Superconductor Physics and Nano-Engineering II
Ivan Bozovic; Davor Pavuna, Editor(s)

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