THE ABDUS SALAM INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS IONIC CHARGE TRANSPORT IN STRONGLY STRUCTURED MOLTEN SALTS
THE ABDUS SALAM INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS IONIC CHARGE TRANSPORT IN STRONGLY STRUCTURED MOLTEN SALTS
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阿卜杜斯·萨拉姆国际强结构熔盐离子电荷输运理论物理中心
DOI：
10.1007/978-1-4684-3818-5
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发表时间：
2005
影响因子：
1.5
通讯作者：
H. Tatlipinar
中科院分区：
文献类型：
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作者：
H. Tatlipinar
接近凝固的二价和三价金属的强结构熔融卤化物的直流离子电导率数据被解释为主要反映了卤离子的电荷传输。在这个假设下，Nerust-Emslein关系允许卤素的translatlonal扩散系数D lr的估计。在至少一种情况下（熔融ZnCl 2）D tr远小于测量的扩散系数，指向通过中性单元的实质性扩散。D tT的值。从能斯特-爱因斯坦关系估计，分析的基础上，涉及两个参数的模型，即键拉伸频率u和平均等待时间r。借助于u>的拉曼散射数据，对r的值进行了评估，发现对于大量的材料，r的值大多在0.02 - 0.3 ps的范围内。
Data on the d.c. ionic conductivity for strongly structured molten halides of divalent and trivalent metals near freezing are interpreted as mainly reflecting charge transport by the halogen ions. On this assumption the Nerust-Emslein relation allows an estimate of the translatlonal diffusion coefficient D lr of the halogen. In at least one case (molten ZnCl 2 ) D tr is much smaller than the measured diffusion coefficient, pointing to substantial diffusion via neutral units. The values of D tT . estimated from the Nernst-Einstein relation are analyzed on the basis of a model involving two parameters, i.e. a bond-stretching frequency u and an average waiting time r. With the help of Raman scattering data for u>, the values of r are evaluated and found to mostly lie in the range 0.02 - 0.3 ps for a vast class of materials.