Enhanced electrical properties in Nd doped cobalt ferrite nano-particles

14th International Symposium on Advanced Materials

Abbas, S.^1 ; Munir, A.^1 ; Zahra, F.^1 ; Rehman, M.A.^1

Applied Thermal Physics Laboratory, Department of Physics, COMSATS Institute of Information Technology, Islamabad

44000, Pakistan^1

关键词: Catalytic applications;    Electrical and magnetic property;    Ferrite materials;    Fourier transform infra reds;    Inverse dependence;    Neodymium doped;    Resistive random access memory;    Spinel ferrites;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/146/1/012027/pdf
DOI  :  10.1088/1757-899X/146/1/012027

来源: IOP

【 摘 要 】

Spinel ferrites are important class of compounds which has variety of electrical, magnetic and catalytic applications. A small amount of rare earth element causes modification in structural, electrical and magnetic properties of ferrite materials for practical applications. Neodymium doped cobalt ferrites with composition CoNdxFe2-xO4where x is 0.1 has been synthesized by sol-gel method. Sol-gel method was preferred because it has good control over stoichiometry, crystallite size and particle size distribution. Characterization was done by using X-Ray Diffraction (XRD) technique for structural analysis and crystal structure was found to be spinel. Particles like morphology was observed in micrographs obtained by Scanning Electron Microscopy (SEM). Thermal analysis of sample has been done which includes Thermogravimetric analysis (TGA) and Differential Scanning calorimetry (DSC). Fourier transform infra-red spectroscopy (FT-IR) of samples was also performed. DC resistivity as a function of temperature has been studied and its shows direct dependence on temperature and inverse dependence on the concentration of Nd dopant. The studied material is a potential candidate for resistive random access memory application.