Unusually strong coherent response from grain-boundary Josephson network in polycrystalline PrxY1 - xBa2Cu3O7 - δ

V. A.G. Rivera; S. Sergeenkov; C. Stari; Jr Cichetto; C. A. Cardoso; E. Marega; F. M. Araujo-Moreira

doi:10.1134/S0021364009170111

Unusually strong coherent response from grain-boundary Josephson network in polycrystalline Pr_xY_{1 - x}Ba₂Cu₃O_{7 - δ}

V. A.G. Rivera, S. Sergeenkov, C. Stari, Jr Cichetto, C. A. Cardoso, E. Marega, F. M. Araujo-Moreira

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

By applying a highly sensitive homemade AC susceptibility technique to Pr_xY_{1 - x}Ba₂Cu₃O_{7 - 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.

Original language	English
Pages (from-to)	365-369
Number of pages	5
Journal	JETP Letters
Volume	90
Issue number	5
DOIs	https://doi.org/10.1134/S0021364009170111
State	Published - Nov 2009
Externally published	Yes

Bibliographical note

Funding Information:
The authors gratefully acknowledge Brazilian agencies CNPq, CAPES and FAPESP for financial support.

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title = "Unusually strong coherent response from grain-boundary Josephson network in polycrystalline PrxY1 - xBa2Cu3O7 - δ",

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.",

author = "Rivera, {V. A.G.} and S. Sergeenkov and C. Stari and Jr Cichetto and Cardoso, {C. A.} and E. Marega and Araujo-Moreira, {F. M.}",

note = "Funding Information: The authors gratefully acknowledge Brazilian agencies CNPq, CAPES and FAPESP for financial support.",

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doi = "10.1134/S0021364009170111",

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volume = "90",

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TY - JOUR

T1 - Unusually strong coherent response from grain-boundary Josephson network in polycrystalline PrxY1 - xBa2Cu3O7 - δ

AU - Rivera, V. A.G.

AU - Sergeenkov, S.

AU - Stari, C.

AU - Cichetto, Jr

AU - Cardoso, C. A.

AU - Marega, E.

AU - Araujo-Moreira, F. M.

N1 - Funding Information: The authors gratefully acknowledge Brazilian agencies CNPq, CAPES and FAPESP for financial support.

PY - 2009/11

Y1 - 2009/11

N2 - 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.

AB - 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.

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U2 - 10.1134/S0021364009170111

DO - 10.1134/S0021364009170111

M3 - Artículo

AN - SCOPUS:76449088984

SN - 0021-3640

VL - 90

SP - 365

EP - 369

JO - JETP Letters

JF - JETP Letters

IS - 5

ER -

Unusually strong coherent response from grain-boundary Josephson network in polycrystalline Pr_xY_{1 - x}Ba₂Cu₃O_{7 - δ}

Abstract

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