Structural and dielectric characteristics of calcium strontium magnesium niobate

Chun Te Lee; Chi Yuen Huang; Yi Chang Lin; Jenn Shyong Hwang

doi:10.1143/JJAP.48.055501

Structural and dielectric characteristics of calcium strontium magnesium niobate

Chun Te Lee, Chi Yuen Huang, Yi Chang Lin, Jenn Shyong Hwang

Department of Resources Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The dielectric and structural characteristics of (Ca_1-x Sr ^x)(Mg_1/3Nb_2/3)O₃, (x= 0-0:5) solid solutions are investigated by measuring and observing these properties by X-ray diffractometry, transmission electron microscopy, and Raman spectroscopy. The splitting of superlattice reflections shows that the (Ca_1-x Sr _x)(Mg_1/3Nb_2/3)O₃ solid solution has a 1 : 2 ordered structure distorted by the antiphase, the in-phase tilting of oxygen octahedra, and the antiparallel shift of cations at 0 - x - 0.5. The strontium substitution causes a tolerance factor increase, which leads to higher structure symmetry. This study indicates that ionic polarizability, tolerance factor, cation substitution, and grain size have a significant effect on the microwave dielectric properties of this solid solution.

Original language	English
Pages (from-to)	555011-555016
Number of pages	6
Journal	Japanese journal of applied physics
Volume	48
Issue number	5
DOIs	https://doi.org/10.1143/JJAP.48.055501
Publication status	Published - 2009 May

All Science Journal Classification (ASJC) codes

General Engineering
General Physics and Astronomy

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10.1143/JJAP.48.055501

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title = "Structural and dielectric characteristics of calcium strontium magnesium niobate",

abstract = "The dielectric and structural characteristics of (Ca1-x Sr x)(Mg1/3Nb2/3)O3, (x= 0-0:5) solid solutions are investigated by measuring and observing these properties by X-ray diffractometry, transmission electron microscopy, and Raman spectroscopy. The splitting of superlattice reflections shows that the (Ca1-x Sr x)(Mg1/3Nb2/3)O3 solid solution has a 1 : 2 ordered structure distorted by the antiphase, the in-phase tilting of oxygen octahedra, and the antiparallel shift of cations at 0 - x - 0.5. The strontium substitution causes a tolerance factor increase, which leads to higher structure symmetry. This study indicates that ionic polarizability, tolerance factor, cation substitution, and grain size have a significant effect on the microwave dielectric properties of this solid solution.",

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T1 - Structural and dielectric characteristics of calcium strontium magnesium niobate

AU - Lee, Chun Te

AU - Huang, Chi Yuen

AU - Lin, Yi Chang

AU - Hwang, Jenn Shyong

PY - 2009/5

Y1 - 2009/5

N2 - The dielectric and structural characteristics of (Ca1-x Sr x)(Mg1/3Nb2/3)O3, (x= 0-0:5) solid solutions are investigated by measuring and observing these properties by X-ray diffractometry, transmission electron microscopy, and Raman spectroscopy. The splitting of superlattice reflections shows that the (Ca1-x Sr x)(Mg1/3Nb2/3)O3 solid solution has a 1 : 2 ordered structure distorted by the antiphase, the in-phase tilting of oxygen octahedra, and the antiparallel shift of cations at 0 - x - 0.5. The strontium substitution causes a tolerance factor increase, which leads to higher structure symmetry. This study indicates that ionic polarizability, tolerance factor, cation substitution, and grain size have a significant effect on the microwave dielectric properties of this solid solution.

AB - The dielectric and structural characteristics of (Ca1-x Sr x)(Mg1/3Nb2/3)O3, (x= 0-0:5) solid solutions are investigated by measuring and observing these properties by X-ray diffractometry, transmission electron microscopy, and Raman spectroscopy. The splitting of superlattice reflections shows that the (Ca1-x Sr x)(Mg1/3Nb2/3)O3 solid solution has a 1 : 2 ordered structure distorted by the antiphase, the in-phase tilting of oxygen octahedra, and the antiparallel shift of cations at 0 - x - 0.5. The strontium substitution causes a tolerance factor increase, which leads to higher structure symmetry. This study indicates that ionic polarizability, tolerance factor, cation substitution, and grain size have a significant effect on the microwave dielectric properties of this solid solution.

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Structural and dielectric characteristics of calcium strontium magnesium niobate

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