High temperature dielectric relaxation anomaly of [Y.sup.3+] and [Mn.sup.2+] doped barium strontium titanate ceramics

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From: Journal of Applied Physics(Vol. 116, Issue 14)
Publisher: American Institute of Physics, Inc.
Document Type: Report
Length: 104 words

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Abstract :

The article describes the investigation of high temperature dielectric relaxation anomaly of [Y.sup.3+] and [Mn.sup.2+] doped barium strontium titanate ceramics by means of the conventional dielectric relaxation analysis method with Debye or modified Debye equations and dielectric response in the form of complex impedance, assisted with Cole-Cole impedance model corrected equivalent circuits. An excellent description to temperature dependence of the dielectric relaxation anomaly and its dominated factors are achieved via this method. Moreover, further analysis reveals that the exponential decay of the Cole distribution parameter with temperature is induced by the microscopic lattice distortion due to ions doping and the interaction between the defects.

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Gale Document Number: GALE|A407219910