PROTON AND DEUTERON CONDUCTIVITY IN CSHSO4 AND CSDSO4 BY IN-SITU ISOTOPIC EXCHANGE

被引：85

作者：

NORBY, T ^{[1
]}

FRIESEL, M ^{[1
]}

MELLANDER, BE ^{[1
]}

机构：

[1] CHALMERS UNIV TECHNOL,DEPT PHYS,S-41296 GOTHENBURG,SWEDEN

来源：

SOLID STATE IONICS | 1995年 / 77卷

关键词：

CSHSO4; CSDSO4; PROTON CONDUCTIVITY; ISOTOPE EFFECTS; IN SITU ISOTOPIC EXCHANGE; ZERO-POINT ENERGY; TUNNELING;

D O I：

10.1016/0167-2738(94)00228-K

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The protonic conductivity of CsHSO4 and CsDSO4 was measured with in situ isotopic exchange using van der Pauw and 2-electrode geometries for the high- and low-temperature phases, respectively. The proton/deuteron conductivity ratio of around 2.3 in the high temperature phase is a result mainly of a 0.02 eV higher activation energy of deuteron conductivity, assigned to a difference in zero-point energy. The low temperature phases exhibited no large isotope effects and hence no indications of proton tunneling.

引用

页码：105 / 110

页数：6

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