title: Molecular dynamics study of fast dielectric relaxation of water around a molecular-sized ion.
abstract: We have calculated the dielectric relaxation of water around an ion using molecular dynamics simulations. The collective motion of water near the ion showed fast relaxation, whereas the reorientational motion of individual water molecules does not have the fast component. The ratio of the relaxation time for the fast component and the bulk water was consistent with the experimental results, known as hyper-mobile water, for alkali halide aqueous solution.
authors.affiliation: Department of Chemistry, Kyushu University, Fukuoka 812-8581, Japan.
authors.forename: Yoji
authors.initials: Y
authors.lastname: Kubota
authors.forename: Akira
authors.initials: A
authors.lastname: Yoshimori
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Matubayasi
authors.forename: Makoto
authors.initials: M
authors.lastname: Suzuki
authors.forename: Ryo
authors.initials: R
authors.lastname: Akiyama