Crystal structure and dielectric properties of (1−x)Ca0.61Nd0.26TiO3+xNd(Mg1/2Ti1/2)O3 complex perovskite at microwave frequencies

2008 ◽  
Vol 104 (12) ◽  
pp. 124104 ◽  
Author(s):  
Mingzhe Hu ◽  
Haoshuang Gu ◽  
Xiangcheng Chu ◽  
Jun Qian ◽  
Zhiguo Xia
Keyword(s):  
Crystal Structure ◽  
Dielectric Properties ◽  
Complex Perovskite ◽  
Microwave Frequencies

Effect of bond valence on microwave dielectric properties of (Pb1−xCax)(Mg0.33Ta0.67)O3 ceramics

2001 ◽  
Vol 16 (3) ◽  
pp. 817-821 ◽  
Author(s):  
Heung Soo Park ◽  
Ki Hyun Yoon ◽  
Eung Soo Kim
Keyword(s):  
Dielectric Properties ◽  
Microwave Dielectric Properties ◽  
Bond Valence ◽  
Negative Deviation ◽  
Complex Perovskite ◽  
Microwave Frequencies ◽  
Microwave Dielectric ◽  
Dielectric Polarizability ◽  
A Site ◽  
The Relationship

The relationship between the dielectric properties of the complex perovskite (Pb1−xCax)(Mg0.33Ta0.67)O3 ceramics, where 0.45 ≤ × ≤ 0.60, and the dielectric polarizability, related to bond valences of A-site ions, was investigated at microwave frequencies. As the Ca content (x) increased, the deviation of the observed dielectric polarizabilities, calculated by the Clausius–Mosotti equation from the theoretical values calculated by the additivity rule of dielectric polarizability, decreased from −3% to −0.69%. It was found that this deviation was related to the bond valence of the A-site. Smaller negative deviation corresponded to the cations with lower bond valence, and larger negative deviation corresponded to the cations with higher bond valence. Also, the temperature coefficient of resonant frequency (TCF) was affected by the bond valence of the A-site, and then TCF decreased with decreasing bond valence of the A-site in ABO3 perovskite compounds.

Crystal structure and dielectric properties of (1− x )SrTiO 3 - x Ca 0.4 Sm 0.4 TiO 3 ceramic system at microwave frequencies

2014 ◽  
Vol 148 (3) ◽  
pp. 1083-1088 ◽  
Author(s):  
Fei Liu ◽  
Xin-Yu Liu ◽  
Chang-Lai Yuan ◽  
Tao Yang ◽  
Guo-Hua Chen ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Dielectric Properties ◽  
Ceramic System ◽  
Microwave Frequencies

Crystal structure and dielectric properties of a new complex perovskite oxide Ba2LaSbO6

2004 ◽  
Vol 79 (8) ◽  
pp. 2041-2047 ◽  
Author(s):  
R. Jose ◽  
J. Konopka ◽  
X. Yang ◽  
A. Konopka ◽  
M. Ishikawa ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Dielectric Properties ◽  
Perovskite Oxide ◽  
Complex Perovskite
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