Dielectric and Impedance Spectroscopy of Samarium and Lanthanum Doped Barium Titanate at Room Temperature

Dielectric ceramic samples in the BaO-Re2O3-TiO2 ternary system were synthesized with structural formula Ba2- xRe4+2x/3Ti8O24 where Re= rare earth metal and Re= Sm and La where x varies from 0.0 to 0.6 with step size 0.1. Polycrystalline samples were prepared by the conventional solid state reaction technique. The dielectric, electrical and impedance analysis of all the samples in the frequency range 1KHz- 1MHz at room temperature (25°C) have been done to get the understanding of electrical conduction and dielectric relaxation and their correlation. Dielectric response of the samples at lower frequencies shows dielectric dispersion while at higher frequencies it shows dielectric relaxation. The ac conductivity is well fitted by the Jonscher law. The spectroscopic data in the impedance plane confirms the existence of grain contribution to the relaxation. All the properties are found out to be function of frequency as well as the amount of substitution.

Authors:

• Sukhleen Bindra Narang
• Dalveer Kaur
• Kunal Pubby

Keywords:

• Dielectric ceramics
• Dielectric constant
• Loss tangent
• AC conductivity
• Impedance spectroscopy.

References:

[1] D. Berlincourt, J.Acoust. Soc. Am., 1992, vol. 91, pp. 3034-3040.
[2] F. Zimmermann, M. Voigts, W. Menesklou and E.I. Tiffee, J. Eur.
Ceram. Soc., 2004, vol. 24, pp. 1729-1733.
[3] A. Tkach and P.M. Vilarinho, Bol. Soc. Esp. ceram., 2008, vol. 47, pp.
238-241.
[4] S. Bindra Narang, D. Kaur, K.S. Thind, J. Ceram.Process. Res., 2005,
vol. 7(1), pp. 31-36.
[5] O. P. Thakur, C. Parkash, D. K. Aggarwal, J. Ceram. Process. Res.,
2002, vol. 3(2), pp. 75-79.
[6] M. Aparna, T. Bhimasankaram, S. V. Suryanarayana, G. Prasad and
G.S. Kumar, Bull. Mater. Sci., 2001, vol. 24, pp. 497-504.
[7] S. Bindra Narang, D. Kaur D and K.S. Thind, J. Ceram. Process. Res.,
2009, vol. 10(5), pp. 595-599.
[8] S. BindraNarang, D. Kaur and K. Singh, Ceram. Int., 2007, vol. 33(2),
pp. 249-253.
[9] S. Bindra Narang, D. Kaur and S. Bahel, Mate. Lett., 2006, vol. 60, pp.
3179-3182.
[10] A.K. Bansal, P.J. Singh, K.S. Sharma, J. Pure Ap.Phy., 2001, vol.39, pp.
799-803.
[11] S.O. Nelson, Bull. Entomol. Soc. Am., 1993, vol. 19(3), pp 157-163.
[12] N.K. Singh, Pritam Kumar, A. Kumar and S. Sharma, J.Engg.Tech.
Res., 2012, vol. 4(6), pp 104-113.
[13] Makram Megdiche, Carine Perrin-pellegrino and Mohamed Gargouri, J.
Alloys Compd., 2014, vol.584, pp.209-215.
[14] H.V. Alexandru, C. Berbecaru, A. Ioachim, M.I. Toascsen, L. Nedelcu
and D. Ghetu, Mater. Sci.Engg. B, 2004, vol.109, pp.152-159.
[15] H. Ohsato, T. Ohhashi, S. Nishigaki, T. Okuda, K. Sumiya and S.
Suzuki, Jpn. J. Appl. Phys., 1993, vol.32, pp.4323-4326.
[16] Sujoy Saha, Sadhan Chanda, Alo Dutta and T.P. Sinha, Mater. Res.
Bull., 2013, vol.48, pp.4917-4923.
[17] S. Bindra Narang and D. Kaur, Integr. Ferroelectr., 2009, vol.105(1),
pp.87-88.
[18] E. Buixaderas, D. Nuzhnyy,P. Vanek, I. Gragora, J. Petzelt,V.
Porokhonskyy, L. Jin, D. Damjanovic, Phase. Transit., 2010, vol.83 (10-
11), pp. 917.
[19] C. Machhi, A. Samoza, A. Dupasquier, A. Lopez andM. Castro, J. Phys.:
Condens. Matter., 2001, vol.13, pp. 5717.
[20] N.S. Hari, T. R. N. Kutty, J. Mater. Sci., 1998, vol.33, pp3275.
[21] R.K. Dwivedi, D. Kumar,O. Parkash, J. Mater. Sci., 2001, vol.36,
pp.3641.
[22] I. Burn, J. Neirman, Mater. Sci.1982, vol.17, pp. 3510.
[23] Yin-Lai Chai, Chi-Shiung His, Yiu-Tingand Lin and Yee-Shin Chang, J.
Alloys Compd., 2014, vol. 588, pp. 248-253.
[24] H. Ohsato, J. Euro.Ceram. Soc., 2001, vol.21, pp. 2703-2711.
[25] H. Ohsato, J. Ceram. Soc.Jpn., 2005, vol.113(11), pp. 703-711.
[26] M.T. Sabestian, Dielectric Materials for Wireless Communication,
Elsevier, New York, 2008.
[27] H. Rahmouni, M. Nouiri, R. Jemai, N. Kallel, F. Rzigua, A. Selmi, K.
Khirouni, S. Alaya, J. Magn. Magn. Mater., 2007, vol. 316, pp. 23.
[28] S. Khadhraoui, A. Triki, S. Hcini, S. Zemni and M. Oumezzine, J.
Alloys Compd., 2013, vol. 574, pp. 290-298.
[29] K. Srinivas, P. Sarah, S.V. Suryanarayana, Bull. Mater. Sci., 2013, vol.
26(2), pp. 247-253.
[30] M. Pollak, in: Proceedings of the International Conference on Physics of
Semiconductors, Exeter, 1962 pp. 86.
[31] S.K. Rout, Ali Hussain, J.S. Lee, I.W. Kim, S.I. Woo, J. Alloys Compd.,
2009, vol. 477, pp. 706-711.
[32] A.K. Jonescher, Nature, 1977, vol. 267, pp. 673-679.
[33] A. K. Jonescher, Dielectric Relaxation in Solids, Chelsea Dielectric
Press, London 1983.
[34] A.K. Jonescher, Universal Relaxation Law, Chelsea Dielectric Press,
London 1996.
[35] N. Zidi, A. Chaouchi, S. d’Astorg, M. Rguti, C. Courtois, J. Alloys
Compd.,2014, vol. 590, pp. 557-564.
[36] N.K. Singh, Pritam Kumar, Radheshyam Rai, Anderi L. Kholkin, Adv.
Mater. Lett., 2012, vol. 3(4), pp. 315-320.
[37] J.R. Macdonald, Impedance spectroscopy emphasizing solid materials
and system, Wiley, New York, 1987.
[38] Paramjeet Singh, Asish Agarwal, Sujata Sanghi, Navneet Singh and
Satish Khasa, Physica B, 2014, vol. 436,pp. 64-73.