Title
Unusually strong coherent response from grain-boundary Josephson network in polycrystalline PrxY1 - xBa2Cu3O7 - δ
Date Issued
01 November 2009
Access level
open access
Resource Type
journal article
Author(s)
Sergeenkov S.
Stari C.
Cichetto J.
Cardoso C.
Marega E.
Araujo-Moreira F.
Universidad Federal de Sao Carlos
Abstract
By applying a highly sensitive homemade AC susceptibility technique to PrxY1 - xBa2Cu3O7 - δ polycrystals (with x = 0.0, 0.1, and 0.3), we observed very sharp Fraunhofer type low-field periodic oscillations of the real part of the AC susceptibility which were attributed to Josephson vortices penetrating intergranular regions of grain-boundary Josephson network in our samples. Assuming the Lorentz type distribution of single-junction contact areas, we were able to successfully fit the experimental data. © Pleiades Publishing, Ltd., 2009.
Start page
365
End page
369
Volume
90
Issue
5
Language
English
OCDE Knowledge area
Termodinámica
Scopus EID
2-s2.0-76449088984
Source
JETP Letters
ISSN of the container
10906487
Sponsor(s)
The authors gratefully acknowledge Brazilian agencies CNPq, CAPES and FAPESP for financial support.
Fundação de Amparo à Pesquisa do Estado de São Paulo - FAPESP
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq
Sources of information:
Directorio de Producción Científica
Scopus