Polarizability induced cooperative proton ordering, coexistence of order/disorder and displacive dynamics and isotope effects in hydrogen-bonded systems

被引：11
作者：
Bussmann-Holder, A
Dalal, N
Michel, KH
机构：
[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
[2] Florida State Univ, Dept Chem, Tallahassee, FL 32306 USA
[3] Florida State Univ, NHMFL, Tallahassee, FL 32306 USA
[4] Univ Instelling Antwerp, Dept Natuurkunde, B-2610 Wilrijk, Belgium
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2000年 / 61卷 / 02期
关键词：
isotope effect; phase transitions;
D O I：
10.1016/S0022-3697(99)00292-9
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Despite the general belief that hydrogen-bonded ferro- and antiferroelectrics undergo a pure order/disorder transition at the structural instability, new NMR data and a new theoretical concept yield convincing evidence that a pronounced displacive component is present in these systems, which modifies substantially the temperature dependencies of the tunnel and lattice mode frequencies. The experiments and their interpretation are presented. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：271 / 274
页数：4
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