Structural study of ND4Br at high pressure

被引：8
|
作者：
Kozlenko, DP [1 ]
Glazkov, VP
Savenko, BN
Somenkov, VA
Hull, S
机构：
[1] JINR, Frank Lab Neutron Phys, Dubna 141980, Russia
[2] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Moscow 123182, Russia
[3] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England
来源：
HIGH PRESSURE RESEARCH | 2000年 / 17卷 / 3-6期
基金：
俄罗斯基础研究基金会;
关键词：
neutron diffraction; high pressure; ammonium bromide;
D O I：
10.1080/08957950008245913
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A structure of ND4Br has been studied at pressures up to 9 GPa by means of time-of-flight neutron diffraction. A phase transition to the high pressure phase V was observed at P=8.2(5)GPa. It was found that the phase V has a tetragonal structure with an antiparallel ordering of ammonium ions, space group P4/nmm which is in strong resemblance with low temperature modification ND4Br(II). Deuterium positional parameter as a function of pressure was obtained.
引用
收藏
页码：251 / 260
页数：10
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