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Proceedings Paper

Investigation of the magnetic penetration depth in YBaCuO/PrBaCuO heterostructures
Author(s): Daniel Ariosa; Thierry Luthy; C. Cao; Joel Perret; Piero Martinoli
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Paper Abstract

Heterostructures made of insulating PrBa2Cu3O7 (PBCO) and superconducting YBa2Cu3O7 (YBCO) compounds, such as PBCO/YBCO/PBCO trilayers and PBCO/YBCO superlattices, were produced by an in-situ laser ablation technique. Deposition rates were carefully adjusted, for each sample, to ensure nominal integer coverages. This minimizes interface alloying and avoids chemical overmodulation when using periodic deposition sequences. Epitaxy, chemical order, c-axis and off axis crystalline coherence were controlled by exhaustive X-ray diffraction analysis on each sample. Inductive measurements were performed on these samples in order to determine their kinetic inductance. The temperature dependence of the magnetic penetration depth was obtained from the kinetic inductance data. The results are discussed in terms of Berezinskii-Kosterlitz-Thouless transition and zero point charge fluctuations.

Paper Details

Date Published: 29 June 1994
PDF: 12 pages
Proc. SPIE 2157, Superconducting Superlattices and Multilayers, (29 June 1994); doi: 10.1117/12.179144
Show Author Affiliations
Daniel Ariosa, Univ. de Neuchatel (Switzerland)
Thierry Luthy, Univ. de Neuchatel (Switzerland)
C. Cao, Univ. de Neuchatel (Switzerland)
Joel Perret, Univ. de Neuchatel (Switzerland)
Piero Martinoli, Univ. de Neuchatel (Switzerland)

Published in SPIE Proceedings Vol. 2157:
Superconducting Superlattices and Multilayers
Ivan Bozovic, Editor(s)

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