文章基本信息

标题：Electrical conductivity of ice VII
本地全文：下载
作者：Taku Okada ; Toshiaki Iitaka ; Takehiko Yagi 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2014
卷号：4
DOI：10.1038/srep05778
出版社：Springer Nature
摘要：It was discovered that a peak appears near a pressure of P_c = 10 GPa in the electrical conductivity of ice VII as measured through impedance spectroscopy in a diamond anvil cell (DAC) during the process of compression from 2 GPa to 40 GPa at room temperature. The activation energy for the conductivity measured in the cooling/heating process between 278 K and 303 K reached a minimum near P_c . Theoretical modelling and molecular dynamics simulations suggest that the origin of this unique peak is the transition of the major charge carriers from the rotational defects to the ionic defects.