High frequency dielectric properties of Ba(Mg1/3 Ta2/3)O3 complex perovskite ceramics

I. Nan Lin; Chih Ta Chia; Hsiang Lin Liu; Yi Chun Chen; Hsiu Fung Cheng; Cheng Chung Chi

doi:10.1016/S0955-2219(03)00160-2

High frequency dielectric properties of Ba(Mg_1/3 Ta_2/3)O₃ complex perovskite ceramics

I. Nan Lin^*, Chih Ta Chia, Hsiang Lin Liu, Yi Chun Chen, Hsiu Fung Cheng, Cheng Chung Chi

^*Corresponding author for this work

Department of Physics

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

11 Citations (Scopus)

Abstract

The dielectric properties of Ba(Mg_1/3Ta_2/3) O₃ and Ba(Mg_1/3Nb_2/3)O₃ ceramics were investigated using Fourier transformed infrared and Raman spectroscopies. The real part of dielectric constant of these materials decreases when the heavier Ta atoms replaced the lighter Nb atoms, which is closely related to the shift of mode-frequency. The Q -factor of the materials depends weakly on the composition. The decrease in Q -factor with the frequency is due to the presence of a resonance mode at around 3 THz. Larger width of the breathing Raman mode, A_1g[O], correlates very well with the lower Q-value of the BMN materials, as compared with the BMT materials.

Original language	English
Pages (from-to)	2633-2637
Number of pages	5
Journal	Journal of the European Ceramic Society
Volume	23
Issue number	14
DOIs	https://doi.org/10.1016/S0955-2219(03)00160-2
Publication status	Published - 2003

Keywords

Ba(Mg,Ta,)O materials
Dielectric properties
FTIR spectroscopy
Microwave ceramics
Raman spectroscopy

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/S0955-2219(03)00160-2

Cite this

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title = "High frequency dielectric properties of Ba(Mg1/3 Ta2/3)O3 complex perovskite ceramics",

abstract = "The dielectric properties of Ba(Mg1/3Ta2/3) O3 and Ba(Mg1/3Nb2/3)O3 ceramics were investigated using Fourier transformed infrared and Raman spectroscopies. The real part of dielectric constant of these materials decreases when the heavier Ta atoms replaced the lighter Nb atoms, which is closely related to the shift of mode-frequency. The Q -factor of the materials depends weakly on the composition. The decrease in Q -factor with the frequency is due to the presence of a resonance mode at around 3 THz. Larger width of the breathing Raman mode, A1g[O], correlates very well with the lower Q-value of the BMN materials, as compared with the BMT materials.",

keywords = "Ba(Mg,Ta,)O materials, Dielectric properties, FTIR spectroscopy, Microwave ceramics, Raman spectroscopy",

author = "Lin, {I. Nan} and Chia, {Chih Ta} and Liu, {Hsiang Lin} and Chen, {Yi Chun} and Cheng, {Hsiu Fung} and Chi, {Cheng Chung}",

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TY - JOUR

T1 - High frequency dielectric properties of Ba(Mg1/3 Ta2/3)O3 complex perovskite ceramics

AU - Lin, I. Nan

AU - Chia, Chih Ta

AU - Liu, Hsiang Lin

AU - Chen, Yi Chun

AU - Cheng, Hsiu Fung

AU - Chi, Cheng Chung

PY - 2003

Y1 - 2003

N2 - The dielectric properties of Ba(Mg1/3Ta2/3) O3 and Ba(Mg1/3Nb2/3)O3 ceramics were investigated using Fourier transformed infrared and Raman spectroscopies. The real part of dielectric constant of these materials decreases when the heavier Ta atoms replaced the lighter Nb atoms, which is closely related to the shift of mode-frequency. The Q -factor of the materials depends weakly on the composition. The decrease in Q -factor with the frequency is due to the presence of a resonance mode at around 3 THz. Larger width of the breathing Raman mode, A1g[O], correlates very well with the lower Q-value of the BMN materials, as compared with the BMT materials.

AB - The dielectric properties of Ba(Mg1/3Ta2/3) O3 and Ba(Mg1/3Nb2/3)O3 ceramics were investigated using Fourier transformed infrared and Raman spectroscopies. The real part of dielectric constant of these materials decreases when the heavier Ta atoms replaced the lighter Nb atoms, which is closely related to the shift of mode-frequency. The Q -factor of the materials depends weakly on the composition. The decrease in Q -factor with the frequency is due to the presence of a resonance mode at around 3 THz. Larger width of the breathing Raman mode, A1g[O], correlates very well with the lower Q-value of the BMN materials, as compared with the BMT materials.

KW - Ba(Mg,Ta,)O materials

KW - Dielectric properties

KW - FTIR spectroscopy

KW - Microwave ceramics

KW - Raman spectroscopy

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