Synthesis of magnetoresistive glass-ceramic composites in the SrO-MnO
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-SiO2-La2O3 system |
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| Authors: | S E Kushnir A V Vasil’ev D D Zaitsev P E Kazin Yu D Tret’yakov |
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| Institution: | (1) Faculty of Material Science, Lomonosov Moscow State University, Vorob’evy gory, Moscow, 119899, Russia;(2) Faculty of Chemistry, Lomonosov Moscow State University, Vorob’evy gory, Moscow, 119899, Russia |
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| Abstract: | Magnetic glass-ceramic composites based on lanthanum-strontium manganite are obtained by thermal treatment of glass of the nominal composition La0.7Sr0.3MnO3 + SrSiO3 at 900–1200°C. At a magnetic field strength of 720 kA/m, the samples are characterized by a magnetization up to 18.6 A/(m 2 kg). The obtained composites possess magnetoresistive properties. At 77 K and magnetic field strength 160 kA/m, the magnitude of the negative magnetoresistance is 2–6.5%. |
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