The structural, morphological and magnetic properties of Ag-doped La0.8Ca0.2-xAgxMnO3 synthesized by sol-gel method

5th International Conference on Nanomaterials and Materials Engineering

Ruli, F.^1 ; Kurniawan, B.^1

Department of Physics, Universitas Indonesia, Depok, Indonesia^1

关键词: Ag doped;    Energy dispersive x-ray;    M-H loops;    Orthorhombic perovskite;    Scanning electron microscopy image;    Space Groups;    Unit-cell volume;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/204/1/012006/pdf
DOI  :  10.1088/1757-899X/204/1/012006

来源: IOP

【 摘 要 】

In this paper, The authors report the structural, morphological and magnetic properties of La0.8Ca0.2-xAgxMnO3(x = 0, 0.03) prepared by sol-gel method. The X-ray diffraction (XRD) patterns of samples reveal an orthorhombic perovskite structure with a space group Pnma. The lattice parameters, Mn-O bond length and unit cell volume increase with doping Ag whereas Mn-O-Mn angle decrease. The scanning electron microscopy (SEM) images show that La0.8Ca0.2MnO3sample more porous than La0.8Ca0.17Ag0.03MnO3sample. Analysis using energy dispersive X-ray (EDX) confirms that there is no significant difference between designated and measured composition. M-H loop hysteresis indicate both sampleare paramagnetic materials which La0.8Ca0.17Ag0.03MnO3sample has higher susceptibility than the others.