THE DIFFUSION OF PROTONS IN THE SUPERIONIC CONDUCTOR CSHSO4 BY QUASI-ELASTIC NEUTRON-SCATTERING

被引：67

作者：

BELUSHKIN, AV

CARLILE, CJ

SHUVALOV, LA

机构：

[1] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

[2] ACAD SCI USSR,INST CRYSTALLOG,MOSCOW 117333,USSR

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 02期

关键词：

D O I：

10.1088/0953-8984/4/2/008

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The diffusion of protons in the superionic phase of CsHSO4 was investigated by quasielastic neutron scattering (QNS) on the IRIS spectrometer at the pulsed spallation neutron source ISIS, Rutherford Appleton Laboratory, UK. Two processes with different characteristic times could be distinguished: long-range translational diffusion with a diffusion coefficient D = (1.00-1.17) x 10(-7) cm2 s-1 (for a temperature range from 423 to 448 K) and jump rotation of HSO4 groups between two possible orientations, the corresponding nonequivalent proton sites being 2.3 A apart.

引用

页码：389 / 398

页数：10

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