Correlation of microwave dielectric properties and normal vibration modes of xBa(Mg1/3Ta2/3)O3-(1-x)Ba(Mg1/3Nb2/3)O3 ceramics:: II.: Infrared spectroscopy

被引：49
作者：
Chen, YC [1 ]
Cheng, HF
Liu, HL
Chia, CT
Lin, IN
机构：
[1] Natl Taiwan Normal Univ, Dept Phys, Taipei 116, Taiwan
[2] Natl Tsing Hua Univ, Ctr Mat Sci, Hsinchu 300, Taiwan
来源：
JOURNAL OF APPLIED PHYSICS | 2003年 / 94卷 / 05期
关键词：
D O I：
10.1063/1.1597969
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The relationship between the microwave dielectric properties and the IR active phonons of xBa(Mg1/3Ta2/3)O-3-(1-x)Ba(Mg1/3Nb2/3)O-3 ceramics was investigated. The IR modes were assigned, and the origin of dielectric response was determined. Among the 15 prominent IR modes, we found that the normal vibrations of the O layers and that of the Ta/Nb layers are strongly correlated to the measured dispersion parameters, such as the resonant strength (4pirho) and the damping coefficient (gamma). The frequency shifts of the normal modes of the O layers and that of the Ta/Nb layers explain the linear decrease of microwave dielectric constant (K) as x increases, while the width of these modes correlate with the Qxf value. (C) 2003 American Institute of Physics.
引用
收藏
页码：3365 / 3370
页数：6
相关论文
共 18 条
[1]   FAR-INFRARED FERROELECTRIC VIBRATION MODE IN SRTIO [J].
BARKER, AS ;
TINKHAM, M .
PHYSICAL REVIEW, 1962, 125 (05) :1527-&
[2]   Correlation of microwave dielectric properties and normal vibration modes of xBa(Mg1/3Ta2/3)O3-(1-x)Ba(Mg1/3Nb2/3)O3 ceramics:: I.: Raman spectroscopy [J].
Chia, CT ;
Chen, YC ;
Cheng, HF ;
Lin, IN .
JOURNAL OF APPLIED PHYSICS, 2003, 94 (05) :3360-3364
[3]   LATTICE-DYNAMICS OF CRYSTALS WITH TETRAGONAL BATIO3 STRUCTURE [J].
FREIRE, JD ;
KATIYAR, RS .
PHYSICAL REVIEW B, 1988, 37 (04) :2074-2085
[4]  
Galasso F. S., 1969, STRUCTURE PROPERTIES, P13
[5]   BA(MG1/3TA2/3)O3 SINGLE-CRYSTAL FIBER GROWN BY THE LASER-HEATED PEDESTAL GROWTH TECHNIQUE [J].
GUO, R ;
BHALLA, AS ;
CROSS, LE .
JOURNAL OF APPLIED PHYSICS, 1994, 75 (09) :4704-4708
[6]   Low-temperature Raman study of zinc-doped lithium niobate crystal powders [J].
Hu, ML ;
Chia, CT ;
Chang, JY ;
Tse, WS ;
Yu, JT .
MATERIALS CHEMISTRY AND PHYSICS, 2003, 78 (02) :358-362
[7]   Dielectric properties of xBa(Mg1/3Ta2/3)O3-(1-x)Ba(Mg1/3Nb2/3)O3 complex perovskite ceramics [J].
Lin, IN ;
Chia, CT ;
Liu, HL ;
Cheng, HF ;
Chi, CC .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2002, 41 (11B) :6952-6956
[8]   Anomaly in the infrared active phonon modes and its relationship to the dielectric constant of (Ba1-xSrx)(Mg1/3Ta2/3)O-3 compound [J].
Nagai, T ;
Sugiyama, M ;
Sando, M ;
Nihara, K .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1996, 35 (9B) :5163-5167
[9]  
NOMURA S, 1984, J AM CERAM SOC, V67, P59
[10]  
NOMURA S, 1982, JPN J APPL PHYS, V21, pL642
12