Multiscale local ordering in the prototypical uniaxial relaxor Sr0.6Ba0.4Nb2O6 single crystal at room temperature

被引：5
|
作者：
Vanina, P. Y. [1 ]
Vakhrushev, S. B. [2 ]
Naberezhnov, A. A. [2 ]
Bosak, A. A. [3 ]
机构：
[1] Peter Great St Petersburg Polytech Univ, 29 Polytech Skaya, St Petersburg 195251, Russia
[2] Ioffe Inst, 26 Politekhnicheskaya, St Petersburg 194021, Russia
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2019年 / 31卷 / 17期
基金：
俄罗斯基础研究基金会;
关键词：
relaxors; correlation length; x-ray diffraction; STRONTIUM BARIUM NIOBATE; NEUTRON-DIFFRACTION; BA0.39SR0.61NB2O6;
D O I：
10.1088/1361-648X/ab03b2
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The structure and diffuse scattering in uniaxial relaxor Sr0.6Ba0.4Nb2O6 single crystal have been studied by x-ray diffraction at room temperature. Two different kinds of local ordering with different correlation lengths and different shapes of correlation functions have been revealed. The values of correlation lengths have been determined from analysis of experimental data. These types of orderings are connected with the intrinsic structure of crystal and can promote the appearance of relaxor properties.
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页数：6
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