Electrical characterisation of Pb₂Bi₃SmTi₅O₁₈ ceramic using impedance spectroscopy

Authors: Prasad, K.; Suman, C. K.; Choudhary, R. N. P.

Source: Advances in Applied Ceramics, Volume 105, Number 5, October 2006 , pp. 258-264(7)

Buy & download fulltext article:

Price: $48.00 plus tax (Refund Policy)

Abstract:

Polycrystalline sample of Pb₂Bi₃SmTi₅O₁₈, a member of tungsten–bronze (TB) family, was prepared using a high temperature solid state reaction technique. X-ray diffraction (XRD) analysis indicated the formation of a single phase orthorhombic structure. AC impedance plots were used as a tool to analyse the electrical behaviour of the sample as a function of frequency at different temperatures. The ac impedance studies revealed the presence of grain boundary effect, from 350°C onward. Complex impedance analysis indicated non-Debye type dielectric relaxation. The Nyquist plot showed the negative temperature coefficient of resistance (NTCR) character of Pb₂Bi₃SmTi₅O₁₈. AC conductivity data were used to evaluate the density of states at Fermi level and activation energy of the compound.

Keywords: IMPEDANCE SPECTROSCOPY; PB2BI3SMTI5O18; CONDUCTIVITY; DIELECTRIC RELAXATION

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/174367606X115940

Publication date: 2006-10-01

More about this publication?

Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.
This journal features top 10 articles which are freely available. Please click here and click on the 'Top articles' link in the right-hand menu to view the list and start downloading.
Editorial Board
Information for Authors
Submit a Paper
Subscribe to this Title
Terms & Conditions
Online submission site
Top 10 Articles
ingentaconnect is not responsible for the content or availability of external websites