Anomalous Broad Dielectric Dispersion of 0.4PZN-0.3PSN-0.3PZN Relaxor Ceramics at Lower Temperatures

Abstract:

Article Preview

Dielectric properties of 0.4PbZn1/3Nb2/3O3-0.3PbSc1/2Nb1/2O3-0.3PbMg1/3Nb2/3O3- (0.4PZN- 0.3PSN-0.3PMN) ceramics are presented for 200 < T < 500 K and 20 Hz < ν < 1 MHz. Dielectric constant is very high (more 14000) in the vicinity of the peak. Anomalous broad dielectric relaxation have been observed near the temperature of the maximum permittivity, Tm (at 1 kHz). External bias field considerably lowers the value of dielectric losses at low frequencies due to decrease of polar nano regions contribution to the dielectric permittivity.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

216-220

DOI:

10.4028/www.scientific.net/MSF.514-516.216

Citation:

J. Banys et al., "Anomalous Broad Dielectric Dispersion of 0.4PZN-0.3PSN-0.3PZN Relaxor Ceramics at Lower Temperatures ", Materials Science Forum, Vols. 514-516, pp. 216-220, 2006

Online since:

May 2006

Export:

Price:

$35.00

[1] C. Malibert, et al: J. Phys.: Condens. Matter. Vol. 9 (1997), p.7485.

[2] Z. Y. Cheng, et al Phys.: Rev. B Vol. 55 (13) (1997), p.8165.

[3] C. Perrin, et al J. Phys.: Condens. Matter. Vol. 12 (2000), p.7523.

[4] D. La-Orautapong, J. Toulouse, J. L. Robertson, and Z. G. Ye: Phys. Rev. B Vol. 64 (2001), 212101.

[5] N. de Mathan, et al: J. Phys.: Condens. Matter. Vol. 3 (1991): p.8159.

[6] R. Pirc and R. Blinc: Phys. Rev. B Vol. 60 (19) (1999), p.13470.

[7] P. Raevski et al. : Integrated Ferroelectrics Vol. 53 (2003), p.475.

[8] Dambekalne, K. Bormanis, A. Stenberg and I. Brandte: Ferroelectrics Vol. 240 (2000), p.221.

[9] S. Kamba, V. Bovtun, J. Petzelt, I. Rychetsky, R. Mizaras, A. Brilingas, J. Banys, J. Grigas, and M. Kosec: J. Phys. Cond. Matter Vol. 12, (2000).

DOI: 10.1088/0953-8984/12/4/309

In order to see related information, you need to Login.