Crystallite Size and Strain Analysis of Nanocrystalline La0.7Sr0.3MnO3 Perovskite by Williamson-Hall Plot Method

被引：18
|
作者：
Kumar, Dinesh [1 ]
Verma, Narendra Kumar [1 ]
Singh, Chandra Bhal [1 ]
Singh, Akhilesh Kumar [1 ]
机构：
[1] Indian Inst Technol BHU, Sch Mat Sci & Technol, Varanasi 221005, Uttar Pradesh, India
来源：
62ND DAE SOLID STATE PHYSICS SYMPOSIUM | 2018年 / 1942卷
关键词：
Perovskite; Manganite; x-ray diffraction; Rietveld analysis; Williamson-Hall plot Method;
D O I：
10.1063/1.5028655
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The nanocrystalline Sr-doped LaMnO3 (La0.7Sr0.3MnO3 = LSMO) perovskite manganites having different crystallite size were synthesized using the nitrate-glycine auto-combustion method. The phase purity of the manganites was checked by X-ray diffraction (XRD) measurement. The XRD patterns of the sample reveal that La0.7S0.3MnO3 crystallizes into rhombohedral crystal structure with space group R-3c. The size-dependence of structural lattice parameters have been investigated with the help of Rietveld refinement. The structural parameters increase as a function of crystallite size. The crystallite-size and internal strain as a function of crystallite-size have been calculated using Williamson-Hall plot.
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页数：4
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