NDLI: Preparation of novel (Sb$_{1/2}$Na$_{1/2}$)(Fe$_{2/3}$W$_{1/3}$)O$_{3}$ compound by solid state reaction technique and their multiferroic property

Content Provider	Springer Nature Link
Author	Ahmed, Suhel Barik, Subrat Kumar
Copyright Year	2016
Abstract	Large leakage current and poor magnetizations are the two major shortcomings observed in known multiferroic BiFeO$_{3}$ which hinders its practical utility. Na and W co-doped SbFeO$_{3}$ i.e. (Sb$_{1/2}$Na$_{1/2}$)(Fe$_{2/3}$W$_{1/3}$)O$_{3}$ with enhanced electric and magnetic properties compared to BiFeO$_{3}$ is prepared by solid state reaction technique. To understand the structure of the compound, X-ray diffraction analysis has been carried out which shows its orthorhombic crystal structure with crystallite size of 20 nm. The obtained crystallite size is same as the particle size, calculated by transmission electron microscope. The scanning electron microscope analysis reveals the formation of grain and grain boundary of the compound with average grain size of 108 nm. Energy dispersive X-ray spectroscopy studies shows that the elemental composition of the compound before and after heat treatment process is almost same. Dielectric and impedance study of the material in a wide range of temperature (30–400 °C) at different frequencies (100 Hz–1 MHz) shows the dielectric relaxation phenomena and the properties of grain and grain boundary respectively. It also reveals the non-Debye type relaxation and negative temperature coefficient of resistance (NTCR) behavior of the compound. DC conductivity of the material is found to obey Arrhenius relation whereas ac conductivity is governed by Jonscher’s universal power law. The appearance of room temperature P–E loop shows the ferroelectric nature of the compound. The material shows the weak ferromagnetic property with remnant magnetization (M$_{r}$) of 0.00582 emu/g and coercive field (H$_{c}$) of 369 Oe.
Starting Page	10294
Ending Page	10302
Page Count	9
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	27
Issue Number	10
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2016-06-16
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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