Synthesis of SrBaFexMo2-xO6 (x=1.0, 1.1, 1.3 and 1.4) double perovskites by sonication: characterization and electron spin resonance studies

i-manager's Journal on Material Science Pub Date : 1900-01-01 DOI:10.26634/jms.10.1.18644

S. Varaprasad, G. Laxminarayana, M. Ramana, Rao A. Ramachander, Rao L. Koteswara

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Abstract

This paper presents influence of ultrasound-assisted method on structure, tolerance factor, density and Electron spin resonance studies of SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3 and 1.4) (SBFMO) double perovskite. SrBaFexMo2-xO6 double perovskite was synthesized by sonochemical procedure at low temperature (9500C) under Ar/ H2 atmosphere. X-ray diffraction studies revealed a single phase with a cubic crystal structure for all the samples. The existence of all elements (Sr, Ba, Fe, Mo, O) contamination-free in the required percentage in SBFMO compound has been analyzed by Energy Dispersive X-ray Spectroscopy (EDS). Goldschmidt Tolerance factor 't' has been used to quantitatively predict the stability 1 and closeness of A2BxB12-xO6. Density measurements for all samples of SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3 and 1.4) were done both theoretically and experimentally. Electron Spin Resonance (ESR) spectra of SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3 and 1.4) were studied to determine the iron state in the compound by varying magnetic field at a constant frequency (X-Band).

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超声合成SrBaFexMo2-xO6 (x=1.0, 1.1, 1.3和1.4)双钙钛矿:表征和电子自旋共振研究

本文研究了超声辅助方法对SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3和1.4)(sbmo)双钙钛矿结构、容差因子、密度和电子自旋共振的影响。采用声化学方法，在Ar/ H2气氛下，低温(9500C)合成了SrBaFexMo2-xO6双钙钛矿。x射线衍射研究显示，所有样品均为具有立方晶体结构的单相。用能量色散x射线能谱(EDS)分析了SBFMO化合物中所有无公害元素(Sr、Ba、Fe、Mo、O)在规定百分比内的存在。Goldschmidt容差因子t用于定量预测A2BxB12-xO6的稳定性和接近性。对SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3和1.4)样品的密度进行了理论和实验测量。研究了SrBaFexMo2-xO6 (x = 1.0, 1.1, 1.3和1.4)的电子自旋共振(ESR)光谱，通过恒定频率(x波段)改变磁场来确定化合物中的铁态。

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i-manager's Journal on Material Science

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