Ghosh S, Ghosh A
Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700 032, India.
J Chem Phys. 2004 Nov 15;121(19):9611-6. doi: 10.1063/1.1806813.
We have investigated ion dynamics in cadmium fluoride nonoxide glasses, in the frequency range from 10 Hz to 2 MHz and in the temperature range from room temperature to just below the glass transition temperature. We have established the existence of mixed alkali effect for these glasses from different aspects of relaxation dynamics. We have observed lower dimensionality of the conduction pathways in mixed alkali cadmium fluoride glasses compared to that in the single alkali glasses. Although, both n and beta represent the interaction between the charge carriers, we have not found any theoretical correlation between them. Using different scaling approaches we have shown that the relaxation dynamics in mixed alkali cadmium fluoride glasses is independent of temperatures.
我们研究了氟氧化镉非氧化物玻璃中的离子动力学，频率范围为10赫兹至2兆赫兹，温度范围为室温至略低于玻璃化转变温度。我们从弛豫动力学的不同方面证实了这些玻璃中混合碱效应的存在。我们观察到，与单一碱玻璃相比，混合碱氟氧化镉玻璃中传导路径的维度更低。尽管n和β都表示电荷载流子之间的相互作用，但我们尚未发现它们之间存在任何理论关联。通过使用不同的标度方法，我们表明混合碱氟氧化镉玻璃中的弛豫动力学与温度无关。
