Abstract Dielectric properties of a set of glasses having the composition (70-x)%V2O5 - x%ZnO − 10%SrO − 20%FeO is studied in terms of their permittivity and electric modulus. The dielectric data are collected at the frequencies 120, 103, 104 and 105 Hz and in the temperature range 300 − 523 K. The electric moduli are treated with different theoretical models. Good fitting to the experimental data are obtained with Cole–Cole and Davidson–Cole equations. The static relaxation time τ0 values are found to vary between 7.6x10−9 sec and 22.7x10−9 sec, and the parameters α and γ are found to be (α = 0.056 − 0.065) and (γ = 0.94 − 0.95). The calculated optical basicity values are found to decrease with increasing the %ZnO. The molar refractive index is found to be between 2.6 and 3.2. The calculated single bond strength values suggest the transfer of bond nature from the covalent to the ionic form. The obtained third-order nonlinear optical susceptibility χ(3) results and electronic polarizability calculations suggests these glasses to be good nominees for nonlinear optical applications.

中文翻译：

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一些 VSrFeZnO 玻璃的介电特性、极化率和摩尔折射率

摘要 在介电常数和电模量方面研究了一组具有 (70-x)%V2O5 - x%ZnO - 10%SrO - 20%FeO 组成的玻璃的介电特性。在 120、103、104 和 105 Hz 的频率和 300 - 523 K 的温度范围内收集介电数据。用不同的理论模型处理电模量。使用 Cole-Cole 和 Davidson-Cole 方程可以很好地拟合实验数据。发现静态弛豫时间 τ0 值在 7.6x10-9 秒和 22.7x10-9 秒之间变化，并且发现参数 α 和 γ 为 (α = 0.056 − 0.065) 和 (γ = 0.94 − 0.95)。发现计算的光学碱度值随着％ZnO的增加而降低。发现摩尔折射率介于 2.6 和 3.2 之间。计算出的单键强度值表明键性质从共价形式转移到离子形式。获得的三阶非线性光学磁化率 χ(3) 结果和电子极化率计算表明这些玻璃是非线性光学应用的良好提名者。