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Perovskite type lanthanum manganite:Morpho-structural analysis and electrical investigationsPaula Sfirloaga1,Maria Poienar1,Iosif Malaescu2,Antoanetta Lungu1,Paulina Vlazan1摘 要:Perovskite-type oxides of LaMnO3 were synthesized by means of the sol-gel method, in the presence of citric acid as gelling agent. The precursors used were Mn(NO3)2·H2O, La2O3......
applications because of its advantage of superior thermal and phase stability. However, the performance of CsPbI2Br based solar cells highly relied on the perovskite crystallization process along...Ultra-smooth CsPbI2Br film via programmable crystallization process for high-efficiency inorganic perovskite solar cellsFu Zhang1,Zhu Ma1,Taotao Hu1,Rui Liu1,Qiaofeng Wu1,Yu Yue1,Hua Zhang1,Zheng......
Electrical and CO-sensing properties of NdFe1–xCoxO3 perovskite system张茹1,胡季帆1,韩周祥1,赵玛1,吴占雷1,张雍家2,秦宏伟21. Henan Provincial Key Laboratory of Surface & Interface Science, Zhengzhou University of Light... to confirm the phase composition of the powders. All the samples are orthorhombic structure. The unit cell volume and grain size decreased with an increase of Co content x. The conduction type......
Electrical and CO-sensing properties of NdFe1–xCoxO3 perovskite system张茹1,胡季帆1,韩周祥1,赵玛1,吴占雷1,张雍家2,秦宏伟21. Henan Provincial Key Laboratory of Surface & Interface Science, Zhengzhou University of Light... to confirm the phase composition of the powders. All the samples are orthorhombic structure. The unit cell volume and grain size decreased with an increase of Co content x. The conduction type......
formula of Li4xLa2/3-xTiO3Fx were prepared by solid state reaction. XRD analysis shows that a tetragonal perovskite-structured phase exits in the studied composition range of 0.05≤x≤0.14 and the composition of perovskite phase depends on the amount of F. AC impedance measurement indicates that the sample of x=0.13 possesses the highest ionic conductivity of 2.32×10-4 S·cm-1 at room temperature.
was studied using confocal scanning laser microscopy(CSLM). Results showed that perovskite was the primary phase formed during the cooling of slag. On the slag surface, the growth of perovskite...Effect of cooling rate on the crystallization behavior of perovskite in high titanium-bearing blast furnace slagLu Liu,Mei-long Hu,Chen-guang Bai,Xue-wei Lü,Yu-zhou Xu,Qing-yu DengCollege......
Institute of Technology,Harbin 150001,China) Abstract:Tetragonally layered perovskite manganites of Nd2-2xSr1+2xMn2O7 (x=0.25, 0.3, 0.4) were fabricated by using solid-state reaction... behavior in the temperature range of 300~1073 K, and the electrical conduction was dominated by thermally activated behavior above 500 K. Key words:layered perovskite manganites; crystal structure......
Novel Phase Transition in BaPr2Mn2O7Hiromi Nakano,Naoki Kamegashira摘 要:<正>The rare earth manganite BaLn2Mn2O7(Ln = rare earth element) has a Sr3Ti2O7-type layered perovskite structure with double-block oxygen octahedra belonging to the Ruddlesden-Popper-type homologous series AO(ABO3)2. In Pr-manganite, a novel phase transition was first observed......
temperature of 900℃, a single perovskite crystalline phase may be formed, although the higher temperature favors the formation of perovskite structure. The energy dispersive spectrometer spectra show...-ray diffractrometry to display the crystalline phase and by energy dispersive spectrometry to determine the elemental compositions and doping performance, and by laser particle size analyzer to analyze......
Magnetic Field Effect on Critical Behavior of Perovskite Ferromagnet Chen Yanping1,Ding Tao2,Tian Hongwei2,Zheng Weitao2,Wang Xin2,Kan Dongwu2 (1.School of Chemistry, Jilin University, Changchun... the external magnetic field results in an increase in the magnitude of ferromagnetic ordering. Key words:critical behavior; perovskite ferromagnet; manganite; rare earths; [全文内容正在添加中] ......
