Abstract―

Dependencies of the complex permittivity of chromium-doped ferroelectric triglycine sulfate crystals (TGS + Cr) have been measured using dielectric spectroscopy method in a frequency range of 1–10⁷ Hz and a temperature range of 23–60°C upon heating and cooling. The dielectric spectra are analyzed by considering the temperature‒frequency dependences of the real (ε') and imaginary (ε") parts of permittivity in the immediate vicinity of the phase transition using the dynamic conductance model and taking into account resonance processes. Good agreement between calculated and experimental data is obtained for the dielectric response of TGS + Cr crystal near the Curie temperature.

中文翻译：

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TGS +Сr晶体在相变附近的介电谱

摘要-

铬掺杂的铁电三甘氨酸硫酸盐晶体（TGS + Cr）的复介电常数的依赖性已经通过介电谱法在加热频率和冷却温度范围为1-10 ⁷ Hz和温度范围23-60°C的条件下进行了测量。通过使用动态电导模型并考虑共振过程，通过考虑相变紧邻附近的介电常数的实部（ε'）和虚部（ε“）的温度-频率依赖性来分析介电谱。对于居里温度附近的TGS + Cr晶体的介电​​响应，获得了计算值和实验值之间的差。