Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
1 PublicationParamagnetic moments in YBa2Cu3O7-δ nanocomposite films
Dias, F. T.; Vieira, V. N.; Silva, D. L.; Albino Aguiar, J.; Valadao, D. R. B.; Obradors, X.; Puig, T.; Wolff-Fabris, F.; Kampert, E.
Abstract
We report on magnetization studies in YBa2Cu3O7-δ thin films with dispersed Ba2YTaO6 nanoparticles. The magnetization measurements were made using a superconducting quantum interference device (SQUID) and a vibrating sample magnetometer (VSM). Magnetic moments were measured as functions temperature using zero-field cooling (ZFC) and field-cooled (FC) prescriptions for magnetic fields up to 10 T applied parallel and perpendicular to the ab planes. A paramagnetic response related to the superconducting state was observed during the FC experiments. This effect, known as paramagnetic Meissner effect (PME), apparently increases when the magnetic field is increased. We discuss our PME results in terms of the strong pinning scenario modulated by Ba2YTaO6 nanoparticles dispersed into the superconducting matrix.
Involved research facilities
- High Magnetic Field Laboratory (HLD)
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Physica C 503(2014), 175-177
DOI: 10.1016/j.physc.2014.02.024
ISSN: 0921-4534
Cited 7 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-20891
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