M 17 Magnetoresistivity of La0.7Sr0.3MnO3/Sb2O3 glass composites at room temperature / Yu. V. Kabirov, V. G. Gavrilyachenko, A. S. Bogatin, T. I. Chupakhina, T. V. Gavrilyachenko // Physics of the Solid State. - 2015. - Vol. 57, № 1. - P14-17 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): МАГНИТНЫЕ ПОЛЯ -- РЕЛАКСАЦИЯ Аннотация: The ceramic composites La0.7Sr0.3MnO3/Sb2O3 with different weight ratios of the components have been synthesized. Their magnetoresistive properties have been studied in weak magnetic fields. The values of negative isotropic magnetoresistance of the 90%La0.7Sr0.3MnO3/10% Sb2O3 composites at room temperature are found to be 1.2% and 14% for 0.25 and 20 kOe, respectively. The observed increase in magnetoresistance with an increase in the field has specific features of the relaxation process. |