Tuning of nonlinear optical and ferroelectric properties via the cationic composition of Ca9.5-1.5xBixCd(VO4)7 solid solutions

被引：22

作者：

Dorbakov, N. G. ^{[1
]}

Baryshnikova, O. V. ^{[1
]}

Morozov, V. A. ^{[1
]}

Belik, A. A. ^{[2
]}

Katsuya, Y. ^{[3
]}

Tanaka, M. ^{[3
]}

Stefanovich, S. Yu. ^{[1
]}

Lazoryak, B. I. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[2] Natl Inst Mat Sci, Funct Mat Res Ctr, Namiki 1-1, Tsukuba, Ibaraki 3050044, Japan

[3] Natl Inst Mat Sci, Synchrotron Xray Stn, SPring 8, Kouto 1-1-1, Sayo, Hyogo 6795148, Japan

来源：

MATERIALS & DESIGN | 2017年 / 116卷

基金：

俄罗斯科学基金会;

关键词：

Vanadates; Ferroelectric properties; Nonlinear optical properties; Crystal structure; CRYSTAL-STRUCTURE; PHASE-TRANSITION; METAL IODATES; WHITLOCKITE; SYSTEM; GROWTH; PHOTOLUMINESCENCE; PHOSPHORS; CALCIUM; MG;

D O I：

10.1016/j.matdes.2016.11.107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ca9.5-1.5xBixCd(VO4)(7) (0 <= x 1) solid solutions with the whitlockite-type structure (SG R3c) were synthesized by a standard solid-state method in air. Structures of Ca9.5-1.5xBixCd(VO4)(7) (x = 0.167, 0.5, 0.833) were refined by the Rietveld method from synchrotron powder X-ray diffraction data. Nonlinear optical properties of the whitlockite-type compounds can be designed and increased by an order of magnitude through appropriate isovalent and aliovalent substitutions for Ca2+ cations. Dielectric and temperature second harmonic generation investigations revealed the presence of a reversible ferroelectric phase transition in the range from 1331 K to 1055 K. The phase transition temperature monotonically decreases while nonlinear optical activity of Ca9.5-1.5xBixCd(VO4)(7) strongly increases with increasing Bi3+ content. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：515 / 523

页数：9

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