Investigation of the magnetic penetration depth in YBaCuO/PrBaCuO heterostructures

Daniel Ariosa; Thierry Luthy; C. Cao; Joel Perret; Piero Martinoli

doi:10.1117/12.179144

29 June 1994 Investigation of the magnetic penetration depth in YBaCuO/PrBaCuO heterostructures

Daniel Ariosa, Thierry Luthy, C. Cao, Joel Perret, Piero Martinoli

Proceedings Volume 2157, Superconducting Superlattices and Multilayers; (1994) https://doi.org/10.1117/12.179144
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

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.

Citation Download Citation

Daniel Ariosa, Thierry Luthy, C. Cao, Joel Perret, and Piero Martinoli "Investigation of the magnetic penetration depth in YBaCuO/PrBaCuO heterostructures", Proc. SPIE 2157, Superconducting Superlattices and Multilayers, (29 June 1994); https://doi.org/10.1117/12.179144

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