Aging of CKN: modulus versus conductivity analysis.
Aging of CKN: modulus versus conductivity analysis.
复制标题
CKN 的老化：模量与电导率分析。
作者：
J. Dyre
最近报道，电模量峰在离子系统CKN退火时变窄[Paluch等人，物理学评论快报110，015702（2013）]，其被解释为提供了该玻璃的动态不均匀性的证据。然而，目前对相同数据的交流电导率分析显示没有形状变化。我们讨论了这两个结果之间的关系，并进一步表明，在退火过程中的任何时候，交流电导率符合随机势垒模型的预测。
It was recently reported that the electrical modulus peaks narrows upon annealing of the ionic system CKN [Paluch et al., Phys. Rev. Lett. 110, 015702 (2013)], which was interpreted as providing evidence of dynamic heterogeneity of this glass. The present analysis of the same data in terms of the ac conductivity shows no shape changes, however. We discuss the relation between both findings and show further that the ac conductivity conforms to the prediction of the random barrier model at all times during the annealing.