Ferroelectric-Paraelectric Phase Transition of CsH2PO4studied by Static NMR and MAS NMR

Size-driven ferroelectric–paraelectric phase transition in TGS nanocomposites

Dielectric properties of porous glass nanocomposites with TGS crystals embedded into six porous matrices with average pore size from 5 to 312 nm were investigated in the temperature range from 280 to 380 K at selected frequencies. The results are discussed based on the effect of the particle size on the phase transition temperature of TGS nanocomposites. Temperature-size phase diagram of TGS co...

Phase transitions in ferroelectric-paraelectric superlattices

Related Articles Modeling the switching kinetics in ferroelectrics J. Appl. Phys. 110, 114106 (2011) Ferroelectric phase transition and low-temperature dielectric relaxations in Sr4(La1xSmx)2Ti4Nb6O30 ceramics J. Appl. Phys. 110, 114101 (2011) Poling temperature tuned electric-field-induced ferroelectric to antiferroelectric phase transition in 0.89Bi0.5Na0.5TiO3-0.06BaTiO3-0.05K0.5Na0.5NbO3 ce...

MAS NMR and conductivity identified anomalous phase transition in nanostructured PbF2

Lead fluoride, a superionic conductor was prepared in its nanostructured form by Inert Gas Condensation Technique (IGCT) using an Ultra High Vacuum (UHV) chamber. The average grain size was found to be in the range 9 to 43 nm. The existence of mixed phases (α and β-PbF2) was identified using XRD. Solid state Pb MAS NMR was carried to average out the dipolar interaction and the resultant isotrop...

Double-Quantum MAS NMR Spectroscopy

Crystal structure and the paraelectric-to-ferroelectric phase transition of nanoscale BaTiO3.

We have investigated the paraelectric-to-ferroelectric phase transition of various sizes of nanocrystalline barium titanate (BaTiO3) by using temperature-dependent Raman spectroscopy and powder X-ray diffraction (XRD). Synchrotron X-ray scattering has been used to elucidate the room temperature structures of particles of different sizes by using both Rietveld refinement and pair distribution fu...