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Abstract
En 中文
The dc electric-field dependence of the dielectric properties of cadmium niobate Cd2Nb2O7 single crystals is studied, and characteristics of the dielectric behavior of Cd2Nb2O7 under dc bias are revealed. The temperature (T-m) where the dielectric relaxation mode occurs is independent of dc bias levels, while its intensity is greatly suppressed and finally eliminated with increasing dc bias from 0 to 15 kV/cm. The observed dielectric relaxation features of Cd2Nb2O7 can be attributed to dielectric relaxor behavior, rather than ferroelectric relaxor behavior previously designated in literature. The physical nature of the dielectric relaxor behavior is briefly discussed. (C) 2004 American Institute of Physics.
Keywords:
PHASE-TRANSITIONS
RELAXATION
FERROELECTRICITY
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3.6
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