电介质
分析化学(期刊)
材料科学
钙钛矿(结构)
大气温度范围
异常(物理)
色散(光学)
航程(航空)
放松(心理学)
凝聚态物理
矿物学
光学
化学
物理
热力学
光电子学
结晶学
复合材料
心理学
社会心理学
色谱法
作者
Fumiko Kojima,Akira Kawakatsu,Shōichiro Nomura
摘要
Dielectric properties of (K1/3Pb2/3)(Zn2/9Nb7/9)O3 with perovskite type are investigated in the frequency range from 1 kHz to 80 MHz. The dielectric constant measured at 1 kHz is 500 at –200°C, and reaches a peak of 3300 at –70°C. With an increase in frequency, the maximum of the dielectric constant is observed at a higher temperature. The dielectric anomaly is of a dispersion type, and the relaxation characteristics is analyzed by means of a Cole-Cole plot. The quadratic electro-optic g factors are measured in the temperature range from –100°C to room temperature. The values of g11-g12 and g44 are nearly constant in the entire temperature range, and are 0.030 m4/C2 and 0.036 m4/C2 respectively.
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