Dielectric relaxation and charge transport process in PrCrO3 nano-ceramic
https://doi.org/10.17586/2220-8054-2016-7-4-613-617
Abstract
In this work we have investigated the frequency dependent dielectric properties of PrCrO3 nano-ceramics using alternating current impedance spectroscopy. The material was synthesized by the sol–gel process. The Rietveld refinement of the X-ray diffraction data suggests single phase formation of the material with Pnma space group. The observed structure is substantiated by Raman spectrum of the sample. The ac conductivity follows the power law. The most probable relaxation frequencies at different temperatures were found to obey Arrhenius’ law.
Supporting agencies: Alo Dutta thanks to Department of Science & Technology of India for providing the financial support through DST Fast Track Project under Grant No. SB/FTP/PS–175/2013.
About the Authors
Sujoy Saha
Bose Institute
India
India
Department of Physics
93/1, Acharya Prafulla Chandra Road, Kolkata-700009
Alo Dutta
S. N. Bose National Centre for Basic Sciences
India
India
Department of Condensed Matter Physics and Material Sciences
Block-JD, Sector-III, Salt Lake, Kolkata-7000106
P. K. Mukhopadhyay
S. N. Bose National Centre for Basic Sciences
India
India
Department of Physics
93/1, Acharya Prafulla Chandra Road, Kolkata-700009
T. P. Sinha
Bose Institute
India
India
Department of Condensed Matter Physics and Material Sciences
Block-JD, Sector-III, Salt Lake, Kolkata-7000106
References
1. Shen Y., Liu M., San T.H., Jiang P. Preparation, Electrical Conductivity, and Thermal Expansion Behavior of Dense Nd1−xCaxCrO3 Solid Solutions. J. Am. Ceram. Soc., 2009, 92, P. 2259-?2264.
2. Gordon G.D., Hornrcich R.M., Shtrikman S., Wanklyn B.M. Magnetization studies in the rare-earth orthochromites. V. TbCrO3 and PrCrO. Phys. Rev. B, 1976, 13, P. 3012–3017.
3. Prasad B.V., Rao G.N., Chen J.W., Babu D.S. Relaxor ferroelectric like giant permittivity in PrCrO3 semiconductor ceramics. Mater. Chem. Phys., 2011, 126, P. 918–921.
4. Zhang Y., Yao C., Fan Y,. Zhou M. One-step hydrothermal synthesis, characterization and magnetic properties of orthorhombic PrCrO3 cubic particles. Mater. Res. Bull., 2014, 59, P. 387–393.
5. Jonscher A.K. Universal relaxation law. Chelsea Dielectrics Press, London, 1996.
Review
For citations:
Saha S., Dutta A., Mukhopadhyay P.K., Sinha T.P. Dielectric relaxation and charge transport process in PrCrO3 nano-ceramic. Nanosystems: Physics, Chemistry, Mathematics. 2016;7(4):613-617. https://doi.org/10.17586/2220-8054-2016-7-4-613-617
Views:
5
Email this article 