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Structural, ac conductivity and dielectric properties of 3-formyl chromone

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Abstract.

The structure for the powder of 3-formyl chromone was examined by X-ray diffraction technique in the \( 2\theta^{\circ}\) range ( \( 4^{\circ}\) - \( 60^{\circ}\) . The configuration of Al/3-formyl chromone/Al samples was designed. The electrical and dielectric properties were studied as a function of frequency (42- \( 5 \times 10^{6}\) Hz) and temperature (298-408K). The ac conductivity data of bulk of 3-formyl chromone varies as a power law with the frequency at different temperatures. The predominant mechanism for ac conduction was deduced. The ac conductivity shows a thermally activated process at different frequencies. The dielectric constant and dielectric loss were determined using the capacitance and dissipation factor measurements at different temperatures. The dielectric loss shows a peak of relaxation time that shifted to higher frequency with an increase in the temperature. The activation energy of the relaxation process was estimated.

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Ali, H.A.M. Structural, ac conductivity and dielectric properties of 3-formyl chromone. Eur. Phys. J. Plus 132, 327 (2017). https://doi.org/10.1140/epjp/i2017-11595-4

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