NDLI: Structural and electrical properties of Ba$_{5}$SmTi$_{3}$V$_{7}$O$

Content Provider	Springer Nature Link
Author	Sahoo, P. S. Panigrahi, A. Patri, S. K. Choudhary, R. N. P.
Copyright Year	2009
Abstract	Polycrystalline sample of Ba$_{5}$SmTi$_{3}$V$_{7}$O$_{30}$ was prepared by a high-temperature solid-state reaction technique. Structural and microstructural characterizations were performed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). X-ray preliminary structural studies reveal that the material has orthorhombic structure at room temperature. Detailed electrical (dielectric and impedance) properties of the material studied by using a complex impedance spectroscopy (CIS) technique in a wide temperature range (33–450 °C) at different frequencies (10$^{2}$–10$^{6}$ Hz) reveal that the relative dielectric constant of the material increases with rise in temperature and thus bulk has a major contribution to its dielectric and electrical properties. The bulk resistance of the material decreases with rise in temperature exhibiting a typical negative temperature coefficient of resistance (NTCR) behavior. The nature of the temperature variation of conductivity and value of activation energy, suggest that the conduction process is of mixed-type (ionic–polaronic and space charge). The existence of ferroelectricity in the compound was confirmed from polarization study.
Starting Page	160
Ending Page	167
Page Count	8
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	21
Issue Number	2
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2009-05-05
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Characterization and Evaluation of Materials Optical and Electronic 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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