Synthesis of Magnetoresistive Glass-Ceramic Composites in the SrO-MnOx-SiO2-La2O3 Systemстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация: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 degrees 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%.