Please use this identifier to cite or link to this item:
Title: Impedance spectroscopic studies in SrBi4Ti4O15
Authors: Ramulu, N Venkat
Aparna, M
Prasad, G
Kumar, G S
Sankaram, T Bhima
Issue Date: Nov-2001
Publisher: NISCAIR-CSIR, India
Abstract: The impedance measurements have been performed in the temperature range of 30 to 600oC and the frequency range 1 kHz to 10 MHz on four-layered SrBi4Ti4O15. The imaginary components of impedance Z", the electrical modulus M" and ac conductivity have been computed, both as a function of frequency and temperature. The peaks appear in Z" versus frequency plots and they shift towards lower frequencies at the temperature up to 500 oC and above 525 oC they shift towards higher frequencies. Similar behaviour is observed in M" versus frequency plots. |Z "| values decrease with increase of temperature, while |M"| values decrease up to 500°C and above 525 oC  these values are found to increase with temperature. Complex impedance diagrams are nearly semicircles at higher temperatures. Results are interpreted in terms of possible conductivity mechanisms present in the sample.
Page(s): 718-725
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.39(11) [November 2001]

Files in This Item:
File Description SizeFormat 
IJPAP 39(11) 718-725.pdf1.33 MBAdobe PDFView/Open

Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.