Phase diagram and dielectric properties of ferroelectric ceramics

Monte Carlo Study of Ferroelectric Properties of Tetragonal Tungsten Bronze Compounds

“…Such behaviour is also in good agreement with experimental study of the ferroelectric phase transition in compound of the family Pb 2-x K 1+x Li x Nb 5 O 15 (PKLN), in which the very similar quantitative evolution of critical temperatures and phase sequences as function of x (that would correspond to J in our model) was discovered experimentally [20] and in Downloaded by [Florida International University] at 14:13 21 December 2014 which the morphotropic region corresponded to transition line IIa-IIb was found around x = 0.3.…”

Investigation of diffuse phase transition in ferroelectric Pb2−x K1+x Li x Nb5O15 (0 ≤ x ≤ 1.5) ceramics

“…The Pb 2-x K 1?x Li x Nb 5 O 15 ceramic considered in the present work belongs to PKLN family, which crystallizes in TTB phase and whose detailed structural study was already done in another work [10]. The chemical composition of PKLN can also be described formally from that of Pb 2 KNb 5 O 15 by a substitution in this compound of one of the Pb 2?…”

“…The ionic conduction related to lithium ions is evidenced in this material [8,9]. Recently, impedance studies, i.e., electrical properties and frequency response at different temperatures of different TTB structure, have thoroughly been studied by us [10,11].…”

“…In this paper, the observed diffuse phase transition in Pb 2-x K 1?x Li x Nb 5 O 15 [10] sample has been studied quantitatively based on recently developed phenomenological model by Santos-Eiras. The origins of diffused phase transition in Pb 2-x K 1?x Li x Nb 5 O 15 ceramics are also discussed.…”

Papers submitted to the 10th International Conference on the Physics of Light–Matter Coupling in Nanostructures, PLMCN 2010 (Cuernavaca, Mexico)

“…This includes the studies of ferroelectric ceramics by E. Choukri et al [20] and ferroelectric thin films by H. Arhchoui et al [21]. The effects of external fields on vortices in anisotropic ferroelectrics [22] and exciton-polariton condensates [23] are reported.…”