ｹﾞｽﾄ - ﾎｽﾄｹｲ ﾆ ﾐﾗﾚﾙ ﾕｳﾃﾞﾝｶﾝﾜｷｮｳﾄﾞﾉ ｲｼﾞｮｳｵﾝﾄﾞ ｲｿﾞﾝｾｲ ﾉ ﾓﾃﾞﾙ
Model on Anomalous Temperature Dependence of Dielectric Relaxation Amplitude in Host-Guest Systems
中西 真大 ,
ﾅｶﾆｼ ﾏｻﾋﾛNakanishi Masahiro
29 , 2017-10-31 , 福岡工業大学ｴﾚｸﾄﾛﾆｸｽ研究所 , Fukuoka Institute of Technology Electronics Research Laboratory
Normally dielectric relaxation amplitudes are increased with decreasing temperature. However, some host-guest systems, such as hydrated proteins and hydrated porous media, exhibit anomalous temperature dependence where relaxation amplitude is decreased with decreasing temperature. In order to explain this anomalous dependence, I developed simplified model which consists of polar guests and a host with numerous connecting sites on its surface. Dielectric relaxation amplitude calculated from the model exhibits Onsager type normal temperature dependence in high temperature regime and Arrhenius type anomalous temperature dependence in low temperature regime. According from this model, the anomalous temperature dependence is explained as antiparallel dipolar-dipolar correlation intermediated via host.