期刊
JOURNAL OF APPLIED PHYSICS
卷 92, 期 5, 页码 2655-2657出版社
AMER INST PHYSICS
DOI: 10.1063/1.1495069
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Ferroelectric-relaxor behavior of Ba(Ti0.7Zr0.3)O-3 ceramics is studied in the temperature range from 150 to 450 K. A broad dielectric peak with a high-dielectric maximum exhibits frequency dispersion. The dielectric relaxation rate follows the Vogel-Fulcher relation with E=0.21 eV and T-VF=199.6 K. The polarization hysteresis loops were observed with a remnant polarization of 10 muC/cm(2) at 175 K. The high-dielectric constant and high-polarization properties are expected to find practical applications at low temperatures. (C) 2002 American Institute of Physics.
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