Microwave properties of Ba(Mg1/3Ta2/3) O3, Ba(Mg1/3Nb2/3)O3 and Ba(Co1/3Nb2/3)O3 ceramics revealed by Raman scattering

M. Y. Chen; C. T. Chia; I. N. Lin; L. J. Lin; C. W. Ahn; Shan Nahm

doi:10.1016/j.jeurceramsoc.2005.09.042

Microwave properties of Ba(Mg_1/3Ta_2/3) O₃, Ba(Mg_1/3Nb_2/3)O₃ and Ba(Co_1/3Nb_2/3)O₃ ceramics revealed by Raman scattering

M. Y. Chen, C. T. Chia^*, I. N. Lin, L. J. Lin, C. W. Ahn, Shan Nahm

^*Corresponding author for this work

Department of Physics

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

100 Citations (Scopus)

Abstract

Five Ba(Co_1/3Nb_2/3)O₃ samples sintered at different temperatures (form 1350 to 1550 °C), one Ba(Mg_1/3Ta_2/3)O₃ and a Ba(Mg_1/3Nb_2/3)O₃ sample were examined by Raman scattering to reveal the correlation of the 1:2 ordered perovskite structure with the microwave properties, such as dielectric constant and Q factors. The Ba(Co_1/3Nb_2/3) O₃ sample sintered at 1400 °C, which possesses the highest microwave Q value and the lowest dielectric constant among five Ba(Co_1/3 Nb_2/3)O₃ samples, has the narrowest width and the highest frequency of the stretch mode of oxygen octahedron (i.e. A_1g (O) near 800 cm^-1). We found that the dielectric constant is strongly correlated with the Raman shift of A_1g(O) stretch modes, and the width of A_1g(O) stretch mode reflects the quality factor Q × f value in the 1:2 ordered perovskite materials. This concludes that the oxygen octahedron play an important role of the material's microwave performance. Based on the results of Q × f values and the lineshapes of A_1g(O) stretch mode, we found that the propagation of microwave energy in Ba(Mg_1/3Ta_2/3)O₃ and Ba(Mg_1/3Nb_2/3)O₃ shows weak damping behavior, however, Ba(Co_1/3 Nb_2/3)O₃ samples sintered at different temperature exhibit heavily damped behavior.

Original language	English
Pages (from-to)	1965-1968
Number of pages	4
Journal	Journal of the European Ceramic Society
Volume	26
Issue number	10-11
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2005.09.042
Publication status	Published - 2006

Keywords

Dielectric properties
Optical properties
Perovskites
Raman scattering

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2005.09.042

Cite this

@article{ca019184589245a88767b6c421e0f3b5,

title = "Microwave properties of Ba(Mg1/3Ta2/3) O3, Ba(Mg1/3Nb2/3)O3 and Ba(Co1/3Nb2/3)O3 ceramics revealed by Raman scattering",

abstract = "Five Ba(Co1/3Nb2/3)O3 samples sintered at different temperatures (form 1350 to 1550 °C), one Ba(Mg1/3Ta2/3)O3 and a Ba(Mg1/3Nb2/3)O3 sample were examined by Raman scattering to reveal the correlation of the 1:2 ordered perovskite structure with the microwave properties, such as dielectric constant and Q factors. The Ba(Co1/3Nb2/3) O3 sample sintered at 1400 °C, which possesses the highest microwave Q value and the lowest dielectric constant among five Ba(Co1/3 Nb2/3)O3 samples, has the narrowest width and the highest frequency of the stretch mode of oxygen octahedron (i.e. A1g (O) near 800 cm-1). We found that the dielectric constant is strongly correlated with the Raman shift of A1g(O) stretch modes, and the width of A1g(O) stretch mode reflects the quality factor Q × f value in the 1:2 ordered perovskite materials. This concludes that the oxygen octahedron play an important role of the material's microwave performance. Based on the results of Q × f values and the lineshapes of A1g(O) stretch mode, we found that the propagation of microwave energy in Ba(Mg1/3Ta2/3)O3 and Ba(Mg1/3Nb2/3)O3 shows weak damping behavior, however, Ba(Co1/3 Nb2/3)O3 samples sintered at different temperature exhibit heavily damped behavior.",

keywords = "Dielectric properties, Optical properties, Perovskites, Raman scattering",

author = "Chen, {M. Y.} and Chia, {C. T.} and Lin, {I. N.} and Lin, {L. J.} and Ahn, {C. W.} and Shan Nahm",

note = "Funding Information: Financial support of this work from the National Science Council of Taiwan, ROC, under the Contract Nos. NSC 92-2112-M-003-017 and NSC 93-2112-M-003-012 is acknowledged.",

year = "2006",

doi = "10.1016/j.jeurceramsoc.2005.09.042",

language = "English",

volume = "26",

pages = "1965--1968",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier BV",

number = "10-11",

}

TY - JOUR

T1 - Microwave properties of Ba(Mg1/3Ta2/3) O3, Ba(Mg1/3Nb2/3)O3 and Ba(Co1/3Nb2/3)O3 ceramics revealed by Raman scattering

AU - Chen, M. Y.

AU - Chia, C. T.

AU - Lin, I. N.

AU - Lin, L. J.

AU - Ahn, C. W.

AU - Nahm, Shan

N1 - Funding Information: Financial support of this work from the National Science Council of Taiwan, ROC, under the Contract Nos. NSC 92-2112-M-003-017 and NSC 93-2112-M-003-012 is acknowledged.

PY - 2006

Y1 - 2006

N2 - Five Ba(Co1/3Nb2/3)O3 samples sintered at different temperatures (form 1350 to 1550 °C), one Ba(Mg1/3Ta2/3)O3 and a Ba(Mg1/3Nb2/3)O3 sample were examined by Raman scattering to reveal the correlation of the 1:2 ordered perovskite structure with the microwave properties, such as dielectric constant and Q factors. The Ba(Co1/3Nb2/3) O3 sample sintered at 1400 °C, which possesses the highest microwave Q value and the lowest dielectric constant among five Ba(Co1/3 Nb2/3)O3 samples, has the narrowest width and the highest frequency of the stretch mode of oxygen octahedron (i.e. A1g (O) near 800 cm-1). We found that the dielectric constant is strongly correlated with the Raman shift of A1g(O) stretch modes, and the width of A1g(O) stretch mode reflects the quality factor Q × f value in the 1:2 ordered perovskite materials. This concludes that the oxygen octahedron play an important role of the material's microwave performance. Based on the results of Q × f values and the lineshapes of A1g(O) stretch mode, we found that the propagation of microwave energy in Ba(Mg1/3Ta2/3)O3 and Ba(Mg1/3Nb2/3)O3 shows weak damping behavior, however, Ba(Co1/3 Nb2/3)O3 samples sintered at different temperature exhibit heavily damped behavior.

AB - Five Ba(Co1/3Nb2/3)O3 samples sintered at different temperatures (form 1350 to 1550 °C), one Ba(Mg1/3Ta2/3)O3 and a Ba(Mg1/3Nb2/3)O3 sample were examined by Raman scattering to reveal the correlation of the 1:2 ordered perovskite structure with the microwave properties, such as dielectric constant and Q factors. The Ba(Co1/3Nb2/3) O3 sample sintered at 1400 °C, which possesses the highest microwave Q value and the lowest dielectric constant among five Ba(Co1/3 Nb2/3)O3 samples, has the narrowest width and the highest frequency of the stretch mode of oxygen octahedron (i.e. A1g (O) near 800 cm-1). We found that the dielectric constant is strongly correlated with the Raman shift of A1g(O) stretch modes, and the width of A1g(O) stretch mode reflects the quality factor Q × f value in the 1:2 ordered perovskite materials. This concludes that the oxygen octahedron play an important role of the material's microwave performance. Based on the results of Q × f values and the lineshapes of A1g(O) stretch mode, we found that the propagation of microwave energy in Ba(Mg1/3Ta2/3)O3 and Ba(Mg1/3Nb2/3)O3 shows weak damping behavior, however, Ba(Co1/3 Nb2/3)O3 samples sintered at different temperature exhibit heavily damped behavior.

KW - Dielectric properties

KW - Optical properties

KW - Perovskites

KW - Raman scattering

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U2 - 10.1016/j.jeurceramsoc.2005.09.042

DO - 10.1016/j.jeurceramsoc.2005.09.042

M3 - Article

AN - SCOPUS:33645544273

SN - 0955-2219

VL - 26

SP - 1965

EP - 1968

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 10-11

ER -