Origin of FSDP in superionic AgI-Ag2O-V2O5 glasses

被引:17
|
作者
Takahashi, H [1 ]
Rikitake, N
Sakuma, T
Ishii, Y
机构
[1] Ibaraki Univ, Fac Engn, Hitachi, Ibaraki 3168511, Japan
[2] Ibaraki Univ, Fac Sci, Mito, Ibaraki 3108512, Japan
[3] Japan Atom Energy Res Inst, Tokai, Ibaraki 3191195, Japan
关键词
glass; medium range order; first sharp diffraction peak; elastic neutron scattering;
D O I
10.1016/j.ssi.2003.12.026
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
FSDP measurements were performed by X-ray diffraction, neutron diffraction and elastic neutron scattering experiments for AgI-Ag2O- V2O5 and some of AgBr-Ag2O-V2O5, AgCl-Ag2O-V2O5 and AgI-AgPO3 glasses at room temperature. FSDP observed by X-ray diffraction is due to the density fluctuation of the network structure. Composition change of this FSDP profile for AgI-Ag2O-V2O5 glasses corresponds to those of the ionic conductivity and the molar volume. New FSDP was found in the high AgI region of AgI-Ag2O-V2O5 system by elastic neutron scattering. FSDP observed by neutron scattering suggests the formation of medium range order of doped AgI in highly AgI-doped glasses. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:93 / 98
页数:6
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