Abstract
The effect of lanthanum doping is studied on ferroelectric properties of Ba1- x La xTiO3 withx = 0.0005, 0.001, 0.003 prepared through solid state sintering route. Dielectric and impedance spectroscopic studies have been carried out. The tetragonal distortion of the unit cell decreased and ferroelectric transition temperature,T cincreased with the increase of lanthanum content.
Combined impedance and admittance spectroscopy was used to analyse impedance data. The electromechanical parameters were calculated from the resonant and anti-resonant frequencies from vector admittance plots. The electromechanical coefficients for Ba1−xLaxTiO3 withx = 0.003 were found to be much larger than that of pure barium titanate.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Arlt G, Hennings D and de With G 1985J. Appl. Phys. 58 1619
Berlincourt D A and Jaffe H 1958Phys. Rev. 111 143
Berlincourt D A, Cmolik C and Jaffe H 1960Proc. I.R.E. 48 220
Desu Seshu B 1990J. Am. Ceram. Soc. 73 3391, 3398, 3407, 3416
Fagen James G 1993Am. Ceram. Soc. Bull. 72 69
Hewang W 1984Ann. Rev. Mater. Sci. 27 14
Holland Richard 1969IEEE Trans. Sonics and Ultra-Sonics 16 173
Katiyar V K, Srivastava S Z and Janardan Singh 1994J. Appl. Phys. b7 455
Macdonald J R 1987Impedance spectroscopy (New York: Wiley)
Mason W P 1964Phys. acoustics: Principles and methods (London: Academic Press)
Murakami T, Miyashita T, Naakahara M and Sekine E 1973J. Am. Ceram. Soc. 56 294
Park Yung, Lee Won Jae and Kim Ho-Gi 1997J. Phys. Condens. Matter 9 9445
Proc. of IRE 196149 1161
Rehrig Paul W, Park Seung-Eek, Trolier Susan, Messing Gary L, Jones Beth and Shrout Thomas R 1999J. Appl. Phys. 86 1657
Tennery V J and Cook R L 1961J. Am. Ceram. Soc. 44 187
Uchino K, Sadanga E and Hirose T 1989J. Am. Ceram. Soc. 72 1555
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Aparna, M., Bhimasankaram, T., Suryanarayana, S.V. et al. Effect of lanthanum doping on electrical and electromechanical properties of Ba1−x La x TiO3 . Bull Mater Sci 24, 497–504 (2001). https://doi.org/10.1007/BF02706721
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02706721