Analysis of the Frequency–Temperature Dependences of Dielectric Permittivity of Vanillic Acid

IF 0.7 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2026-10-05 DOI:10.1134/S0036024426701852

A. S. Volkov, S. S. Khviyuzov

引用次数: 0

Abstract

The dependences of the real and imaginary parts of the complex dielectric permittivity in the frequency range of an external alternating electric field from 6.28 × 10^–2 to 7.23 × 10⁶ rad s^–1 and temperatures from 173 to 453 K were presented. Four relaxation processes were found. The characteristic parameters (static and high-frequency permittivity, relaxation time, relaxation time distribution parameters α and β, and activation energy) were determined in accordance with the Havriliak–Negami dispersion relation.

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香草酸介电常数的频率-温度关系分析

给出了在外部交变电场频率范围为6.28 × 10-2 ~ 7.23 × 106 rad s-1和温度范围为173 ~ 453 K范围内复介电常数实部和虚部的依赖关系。发现了四个松弛过程。根据Havriliak-Negami色散关系确定了其特征参数（静态和高频介电常数、弛豫时间、弛豫时间分布参数α和β、活化能）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.