Slow Relaxation Processes in CCTO Detected by Capacitance Versus Voltage Curves

The temperature and frequency dependence of capacitance versus voltage (C–V) curves was investigated for ceramic CaCu3Ti4O12 samples sintered in atmospheres of vacuum, air and oxygen, respectively. A drastic capacitance rise at higher dc voltages and low ac frequencies was observed for all these CaC...

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Veröffentlicht in:	Journal of the American Ceramic Society 2013-01, Vol.96 (1), p.253-258
Hauptverfasser:	Luo, Xiao Jing, Yang, Chang Ping, Song, Xue Ping, Tang, Shao-Long, Xiao, Hai-Bo, Bärner, Klaus Herrmann Otto
Format:	Artikel
Sprache:	eng
Schlagworte:	Anisotropy CAPACITANCE CERAMICS Charge Charge (electric) COPPER OXIDE Correlation analysis DIELECTRIC CONSTANT Dielectric properties Electric charge Electric currents Electric fields Electric potential MAGNETIC FIELD Oxygen SINTERING Temperature VOLTAGE
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