THz spectroscopy of liquid H2O and D2O

被引：344

作者：

Ronne, C

Åstrand, PO

Keiding, SR

机构：

[1] Aarhus Univ, Dept Chem, DK-8000 Aarhus C, Denmark

[2] Riso Natl Lab, Condensed Matter Phys & Chem Dept, DK-4000 Roskilde, Denmark

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.82.2888

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured and analyzed the dielectric (0.1-2 THz) response of liquid H2O and D2O from 270 to 365 K. The response has been modeled using a Debye model with a fast and a slow decay time. By shifting the temperature scale for the slow decay time of D2O by 7.2 K we find identical behavior for D2O and H2O. The temperature dependence and isotope shift of the intermolecular structural relaxation characterized by the slow decay time can be modeled with a singular point at 228 K for H2O and 235 K for D2O. [S0031-9007(99)08896-1].

引用

页码：2888 / 2891

页数：4

共 29 条

[1] Tetrahedral displacement: The molecular mechanism behind the Debye relaxation in water [J].