Results 61 to 70 of about 20,019 (258)
Advanced Science, EarlyView.Metal‐free molecular crystal [(CH3C6H10NH3)(18‐crown‐6)][ClO4] functions as a high‐performance molecular ferroelectric. Through strategic methylation of the cyclohexylamine unit, the compound achieves large spontaneous polarization and outstanding piezoelectric coefficients.
Nan Chen +4 more
wiley +1 more source
Manipulating Atomic Disorder and Mesoscale Architectures for High‐Efficiency Thermoelectric Modules
Advanced Science, EarlyView.The in situ reaction of PbTiO3 precursor reacts in situ with the Bi0.5Sb1.5Te3 matrix, effectively enlarging the energy barrier for minority carrier excitation and suppressing bipolar diffusion, and predominantly scattering mid‐to‐low frequency phonons. Ultimately, a single thermoelectric module was fabricated to achieve a competitive efficiency of ∼7%
Jiwu Xin +10 more
wiley +1 more source
Tuning of the depolarization field and nanodomain structure in ferroelectric thin films
, 2014 The screening efficiency of a metal-ferroelectric interface plays a critical role in determining the polarization stability and hence the functional properties of ferroelectric thin films.
Fernandez-Pena, Stéphanie +4 more
core +2 more sources
The nature of an enhanced ferroelectric phase transition temperature in perovskite-based solid solutions [PDF]
, 2004 We explain the phenomena of ferroelectric phase transition temperature $T_c$ enhancement beyond the end members in perovskite solid solutions like BiMeO$_3$-PbTiO$_3$ (Me=Sc, In, etc.) is related to nonlinear and spatial correlation effects.
Glinchuk, M. D. +2 more
core +1 more source
Zero Thermal Expansion and Local Structure in KxMnxFe2‐xMo3O12‐Based Materials
Advanced Science, EarlyView.Local structure engineering via ion insertion drives local structural transformation from low‐symmetry P21/a to high‐symmetry R‐3c, enhancing structural flexibility and realizing a transition from positive thermal expansion to wide‐temperature‐range zero thermal expansion in KxMnxFe2‐xMo3O12‐based materials.
Gongsen He +13 more
wiley +1 more source
Band alignment at metal/ferroelectric interfaces: insights and artifacts from first principles [PDF]
, 2011 Based on recent advances in first-principles theory, we develop a general model of the band offset at metal/ferroelectric interfaces. We show that, depending on the polarization of the film, a pathological regime might occur where the metallic carriers ...
C. H. Peng +7 more
core +3 more sources
APL MaterialsThis work focuses on the complex ferroelastic/ferroelectric domain structure in the prototypical ferroelectric PbTiO3 epitaxially strained on (110)o-oriented DyScO3 substrates, with a 22 nm-thick bottom SrRuO3 electrode. High quality epitaxial growth has
L. Tovaglieri +8 more
doaj +1 more source
Poling-free relaxor-PbTiO3 single crystals
Journal of MateriomicsRelaxor-PbTiO3 ferroelectric single crystals have drawn attention aiming at high-end piezoelectric applications thanks to their excellent piezoelectric properties.
Hwang-Pill Kim +8 more
doaj +1 more source
Sol-gel processing and physic-chemical characterization of La and Ce doped lead titanate ceramics
MATEC Web of Conferences, 2013 PbTiO3 (PT) sol gel processed powders doped with lanthanum (PLT14) and cerium (PLCexT14, x = 1; 3; 6; 10) were characterized by XRD and Raman spectroscopy. The samples crystallize in a pure perovskite phase at temperatures smaller than those reported for
Guaaybess Y. +6 more
doaj +1 more source
Ingenius: Revista de Ciencia y Tecnología, 2008 Estudio químico-cuántico de los defectos producidos por las vacancias de oxígeno en los cristales de Titanato de plomo ...
Arvids Stashans +2 more
doaj +1 more source