Crystal structure modeling, electrical and thermal characterization of triple molybdates RbCrTi0.5(MoO4)3 (R=Fe, Cr)

被引:16
作者
Dorzhieva, Sesegma G. [1 ]
Bazarov, Bair G. [1 ]
Subanakov, Alexey K. [1 ]
Bazarova, Jibzema G. [1 ]
机构
[1] Baikal Inst Nat Management SB RAS, Ulan Ude 670047, Russia
基金
俄罗斯基础研究基金会;
关键词
Molybdates; Rietveld refinement; Dielectric properties; Ionic; Conductivity; CONDUCTION; MOTION;
D O I
10.1016/j.jssc.2012.11.023
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The new triple molybdates of RbRTi0.5(MoO4)(3) (R=Fe, Cr) were synthesized by a ceramic route at 580-600 degrees C. Their crystal structures have been refined by Rietveld analysis of powder X-ray diffraction data on the single crystal data of isostructural CsFeZr0.5(MoO4)(3) (trigonal symmetry, space group R-3). The structure refinement converged to satisfactory values of the Rietveld parameters, Rp and Rwp, and goodness of fit. The lattice parameters, bond lengths and bond angles have been calculated from Full Proff program. The maximum value of RbCrTi0.5(MoO4)(3) conductivity was 0.57 x 10(-2) S cm(-1) at 507 degrees C. Crown Copyright (C) 2012 Published by Elsevier Inc. All rights reserved.
引用
收藏
页码:21 / 26
页数:6
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