Study of La0.7Sr0.3Mn0.96Co0.04O3, La0.7Sr0.3MnO3 and BaTiO3 composites

Study of La0.7Sr0.3Mn0.96Co0.04O3, La0.7Sr0.3MnO3 and BaTiO3 composites

Composites with varying composition of ferromagnetic La0.7Sr0.3Mn0.96Co0.04O3, La0.7Sr0.3MnO3 and ferroelectric BaTiO3 have been prepared using a solid-state ceramic method. The structure, temperature dependence of DC resistivity, dielectric constant, magnetoresistance, and the hysteresis loops of s...

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Veröffentlicht in:Physica. B, Condensed matter Condensed matter, 2003-04, Vol.327 (2-4), p.370-373
Hauptverfasser: Cong, B.T., Dinh, N.N., Hien, D.V., Tuyen, N.L.
Format: Artikel
Sprache:eng
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Zusammenfassung:Composites with varying composition of ferromagnetic La0.7Sr0.3Mn0.96Co0.04O3, La0.7Sr0.3MnO3 and ferroelectric BaTiO3 have been prepared using a solid-state ceramic method. The structure, temperature dependence of DC resistivity, dielectric constant, magnetoresistance, and the hysteresis loops of some samples have been investigated. Positive thermoresistive coefficient and colossal magnetoresistance effects were observed in the samples consisting of 90 mol% BaTiO3 and 97 mol% La0.7Sr0.3MnO3. The intermediate compositions (50 mol% each other) are good candidates for application as multiferroic material.
ISSN:0921-4526
DOI:10.1016/s0921-4526(02)01746-5