The high-temperature structure of lead magnoniobate
The high-temperature structure of lead magnoniobate
复制标题
镁铌酸铅的高温结构
DOI：
10.1088/0953-8984/6/22/001
复制
发表时间：
1994
期刊：
影响因子：
--
通讯作者：
V. Chernyshov
中科院分区：
文献类型：
--
作者：
S. Vakhrushev;S. G. Zhukov;G. V. Fetisov;V. Chernyshov
本文叙述了用钼K α射线在四圆衍射仪上对铌酸铅单晶PbMg_（13）/Nb_（23）/O_3进行X射线衍射测量的结果。据证实，即使在相对较高的温度下，铅离子从高对称性的位置移动。结果表明，这些移位在长度和方向上都是随机的。为了更好地描述实验数据，提出了一种球层模型。讨论了晶体结构与晶体物理性质之间的对应关系。
The results of X-ray diffraction measurements of a lead magnoniobate single crystal-PbMg13/Nb23/O3, performed on a four-circle diffractometer with Mo K alpha radiation, are described. It is confirmed that even at relatively high temperatures lead ions are shifted from the high-symmetry position. It is shown that these shifts are random both in length and direction. A spherical layer model is proposed for the adequate description of the experimental data. The correspondence between the crystal structure and the physical properties of the crystal is discussed.
DOI：
10.1111/j.1151-2916.1989.tb06180.x
发表时间：
1989-04-01
影响因子：
3.9
作者：
CHEN, J;CHAN, HM;HARMER, MP
通讯作者：
HARMER, MP