Weak exchange bias effect in RuSr2GdCu2O8–La0.67Sr0.33MnO3 composites

We report the synthesis and characterization of RuSr2GdCu2O8–La0.67Sr0.33MnO3 superconducting-magnetic composites with 0–50wt% of La0.67Sr0.33MnO3 in the composites. Systematic measurements of magnetization as a function of applied magnetic field at up 5 T were performed at temperature regimes below...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2007-09, Vol.460-462 (1), p.528-529
Main Authors: Roa-Rojas, J., Landínez Téllez, D.A., Jurelo, A.R., Dobrzanski, R., Albino Aguiar, J.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cuprates superconductors (high tc and insulating parent compounds)
Exact sciences and technology
Exchange bias effect
Magnetic properties
Magnetic properties and materials
Magnetotransport phenomena, materials for magnetotransport
Manganite
Manganites
Other cuprates
Physics
Properties of type I and type II superconductors
Superconducting ruthenate
Superconductivity
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Summary:We report the synthesis and characterization of RuSr2GdCu2O8–La0.67Sr0.33MnO3 superconducting-magnetic composites with 0–50wt% of La0.67Sr0.33MnO3 in the composites. Systematic measurements of magnetization as a function of applied magnetic field at up 5 T were performed at temperature regimes below the Curie temperature (TC) of La0.67Sr0.33MnO3 but above the Néel temperature (TN) of RuSr2GdCu2O8; below TN of RuSr2GdCu2O8 but above the superconducting critical temperature (TSC) of RuSr2GdCu2O8; and below TSC of RuSr2GdCu2O8. Our results reveal the ferromagnetic character of the composites at the temperature regime TN
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2007.03.124