3 papers
cond-mat.mtrl-sci2004
Investigation of dielectric anomalies at cryogenic temperatures in the (1-x)[Pb(Mg1/3 Nb2/3)O3]-xPbTiO3 system
M. H. Lente, A. L. Zanin, E. R. M. Andreeta +3
Complex electrical permittivity measurements in (1-x)[Pb(Mg1/3 Nb2/3)O3]-xPbTiO3 ceramics for 0.10 x 0.40 were performed in the frequency and temperature range from 1 kHz to 100 kH…
cond-mat.mtrl-sci2004
Investigation of microwave dielectric relaxation process in the antiferroelectric phase of NaNbO3 ceramics
M. H. Lente, J. de Los S. Guerra, J. A. Eiras
This letter reports microwave dielectric measurements performed in the antiferroelectric phase of NaNbO3 ceramics from 100 to 450 K. Remarkable dielectric relaxations were found wi…
cond-mat.mtrl-sci2003
90-degree domain wall relaxation and frequency dependence of the coercive field in the ferroelectric switching process
M. H. Lente, A. Picinin, J. P. Rino +1
The mechanisms involved in the polarization switching process in soft and hard Pb(Zr53, Ti47)O3 (PZT) bulk ceramics were investigated through the dependency of the hysteresis loop…