Dynamical structure of water in aqueous solutions of LiCl, NaCl, and KCl by low-frequency Raman scattering: Comparison between the multiple random telegraph model and Cole-Cole relaxation

被引：32

作者：

Amo, Y

Tominaga, Y

机构：

[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo, Japan

[2] Ochanomizu Univ, Grad Sch Humanities & Sci, Bunkyo Ku, Tokyo 1128610, Japan

来源：

PHYSICAL REVIEW E | 1998年 / 58卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.58.7553

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Depolarized low-frequency Raman spectra of aqueous solutions of LiCl, NaCl, and KCl have been investigated over a wide concentration range. The spectra were analyzed with one relaxation mode and two damped harmonic oscillators. We applied two types of relaxation model: the multiple random telegraph (MRT) model and the Cole-Cole-type relaxation. Each relaxation time becomes longer than that of liquid water in both relaxation models. Structure making (Li, Na) and structure breaking (K) effects were concluded from a fitting parameter corresponding to the modulation speed in the MRT model. [S1063-651X(98)04512-7].

引用

页码：7553 / 7560

页数：8

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