Electrical Impedance Properties of Y₂NiMnO₆ Ceramics for DC Bias at Atmosphere

Abstract:

The electrical impedance of Y₂NiMnO₆ ceramics sintered at 1400 °C for 6 to 24 hours were investigated. The electrical properties of Y₂NiMnO₆ ceramics were examined in dc bias from 0 volt to 1.5 volt at room temperature. At frequencies below 10⁵ Hz the high electric impedance decreased significantly with longer sintering time, indicating that the grain and grain boundary effects. Increasing dc bias also reduced impedance at the lower frequencies, with polarisation affect at higher frequencies. This behaviour suggests a decrease in the relaxation time of the mobile charge carriers with increasing dc bias and describes a thermally activated relaxation phenomena in the Y₂NiMnO₆ ceramics.

• Periodical: Applied Mechanics and Materials (Volume 866)
• Pages: 251-255
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.866.251
• Online since: June 2017
• Authors: Naphat Albutt*, Suejit Pechprasarn, Rukchanok Wanasuk, Thanapong Sareein
• Keywords: Ceramics, Composite, Electrical Impedance

References

[1] S. Kumar, G. Giovannetti, J. van den Brink and S. Picozzi, Theoretical prediction of multiferroicity in double perovskite Y2NiMnO6, Phys. Rev. B82 (2010) 134429.

[2] K.D. Chanadrsekhar, A.K. Das and A. Venimadhav, Magnetic properties of La2NiMnO6 nanoparticles, Solid State. Phys, Proceeding. 1447 (2012) 1237-1238.

[3] Y.Q. Lin, X.M. Chen and X.Q. Liu, Relaxor-like dielectric behavior in La2NiMnO6 double perovskite ceramics, Solid State. Com. 149 (2009) 784-787.

DOI: 10.1016/j.ssc.2009.02.028

[4] D.J. Singh and C.H. Park, Polar behavior in a magnetic perovskite from a-site size disorder: a density functional study, Phys Rev Lett. 100 . 8 (2008) 087601.

DOI: 10.1103/physrevlett.100.087601

[5] S. Theeranum, N. Chathirat, M. Chivalrat and Y. Teerapon, Synthesis, characterization, and dielectric properties of Y2NiMnO6 ceramics prepared by a simple thermal decomposition route. J Mater Sci: Mater Electron, vol 25 (2014) 1361-1368.

DOI: 10.1007/s10854-014-1735-3

[6] P. Deeyai, T. Sareein, B. Putasaeng, N. Chathirat, Dielectric properties of Y2NiMnO6 ceramics at various sintering times and temperatures, AMM. 804(2015) 16-20.

DOI: 10.4028/www.scientific.net/amm.804.16

[7] T. Sareein, P. Deeyai, B. Putasaeng, N. Chathirat, The Dielectric property of Y2NiMnO6 ceramics sintered at high temperature, AMM. 804(2015) 108-112.

DOI: 10.4028/www.scientific.net/amm.804.108

[8] T. Sareein, P. Deeyai, B. Putasaeng, N. Chathirat, Electrical properties of Y2NiMnO6 ceramics sintered at high temperature, AMM. 804(2015) 55-58.

DOI: 10.4028/www.scientific.net/amm.804.55

[9] D.C. Sinclair, A.R. West, Impedance and modulus spectroscopy of semiconducting BaTiO3 showing positive temperature coefficient of resistance, J. Appl. Phys. 66 (1989) 3850.

DOI: 10.1063/1.344049