Electric Modulus, Dielectric Relaxation Mechanism and Impedance Properties of Melaminum Perchlorate Monohydrate - Broadband Dielectric Spectroscopic Study

S. Sankara, N. Kanagatharab, J.C. Robinson Azariahc aDepartment of Physics, Indira Institute of Engineering & Technology, V.G.R. Nagar, Pandur, Thiruvallur District, 631 203, India bDepartment of Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai 602 105, India cDepartment of Electronics and Communication Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, 602 105, India

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Single crystals of melaminium perchlorate monohydrate has been subjected to dielectric examination. Evaluation of electrical and dielectric mechanism of melaminium perchlorate monohydrate single crystals has been carried out over the temperature ranges from 313 to 373 K and frequency ranges from 0.05 to 5 MHz through dielectric, impedance spectral analysis and conductivity studies. At high frequencies, the dielectric constant and dielectric loss are found to be low for various temperatures, which ensures a good optical nature of the grown material. Complex impedance spectral analysis is involved in the study of the conduction and dielectric relaxation mechanism of the grown material. The frequency-dependent AC conductivity validates the Jonscher's power law. The formation of an asymmetric dispersion peak from the electrical modulus imaginary part (M'') indicates the non-Debye relaxation behaviour of the grown material. Thus in the present study, broadband dielectric spectroscopic investigation has been employed to analyse the mechanism of dielectric relaxation on melaminium perchlorate monohydrate.

DOI:10.12693/APhysPolA.141.500 topics: dielectric constant, conductivity, impedance, dielectric relaxation