Aging Behavior and Electric Field Induced Instabilities in Lead Magnesium Niobate - Titanate Relaxor Ferroelectric Single Crystal

Ghulam Shabbir

doi:10.4028/www.scientific.net/KEM.778.212

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 778Aging Behavior and Electric Field Induced...

Aging Behavior and Electric Field Induced Instabilities in Lead Magnesium Niobate - Titanate Relaxor Ferroelectric Single Crystal

Abstract:

The aging characteristics and influence of electric field poling on the phase transitions in (1-x)Pb (Mg_1/3Nb_2/3)O₃-xPbTiO₃ (PMN-xPT) [110]-oriented single crystal were examined through temperature dependent complex capacitance study. In addition to two phase transition anomalies exhibited by the crystal in the virgin state, other phase transition instabilities were observed in the complex capacitance of the crystal under the external applied electric field. The aging behavior deviated from the linear logarithmic law and followed the stretched exponential expression typical for relaxor ferroelectrics. Moreover, aging decreased with frequency while it became faster with increase in temperature towards the paraelectric – ferroelectric structural phase transition temperature.

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Periodical:

Key Engineering Materials (Volume 778)

Pages:

212-216

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.778.212

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Online since:

September 2018

Authors:

Ghulam Shabbir*

Keywords:

Aging, Ferroelectrics, PMN-PT, Relaxors

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Creative Commons CC BY 4.0

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* - Corresponding Author

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