Synthesis,electrical and magnetic characteristics of Nd-modified BiFeO3 |
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| Affiliation: | 1. Department of Physics, College of Basic Science and Humanities, OUAT, Bhubaneswar, India;2. Department of Physics, Institute of Technical Education & Research, Siksha ‘O’ Anusandhan University, Bhubaneswar 751030, India;1. Departamento de Cerámica, Instituto de Cerámica y Vidrio, C/ Kelsen 5. Campus de Cantoblanco, 28049 Madrid Spain;2. Instituto de Bioingenieria, Universidad Miguel Hernández, Avda. de la Universidad s/n, 03202 Elche, Alicante Spain;1. Department of Physics, Government Post Graduate College, Uttarkashi 249193, India;2. Smart Materials Research Laboratory, Department of Physics, Indian Institute of Technology, Roorkee 247667, India |
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| Abstract: | The polycrystalline Nd-modified bismuth ferrite BiFeO3 (Bi1?xNdxFeO3 (BNFO) (x=0, 0.05, 0.15, and 0.25)) were prepared in a single-phase using a standard and cost effective solid-state reaction method. In order to check the quality and formation of the compounds x-rays diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive x-ray spectroscopy (EDAX) techniques were used. Preliminary structural analysis indicates that the crystal structure of BNFO is rhombohedra for its low content of Nd (x=0, 0.05, 0.15) whereas for higher content (x=0.25) it is tetragonal. The dielectric and ferroelectric properties of BiFeO3 (BFO) were dramatically enhanced on the above Nd-substitutions. Study of the frequency dependence of ac conductivity suggests that the materials obey Jonscher?s universal power law. An increase in Nd-content in BNFO results in the enhancement of spontaneous magnetization of BFO because of the collapse of spin cycloid structure. |
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| Keywords: | C Electrical properties C Magnetic Properties Multiferroic XRD |
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