Factors Limiting Equilibrium in Fabricating a Simple Ferroelectric Oxide: BaTiO3

Inverse barocaloric effects in ferroelectric BaTiO3 ceramics

Periodic Slab LAPW Computations for Ferroelectric BaTiO3

Linearized augmented plane wave (LAPW) calculations are performed for periodic (001) and (111) slabs of BaTiO3 to understand the effects of surfaces on ferroelectric BaTiO3. The (111) slab is found to be much less stable than the (001) slab. The average surface energies are respectively 3700 erg/cm and 1600 erg/cm. The depolarization field is sufficiently large in the ideal unrelaxated slab to ...

Ultrafast terahertz-field-driven ionic response in ferroelectric BaTiO3

F. Chen,1,2 Y. Zhu,3 S. Liu,4,5 Y. Qi,4 H. Y. Hwang,6 N. C. Brandt,6 J. Lu,6 F. Quirin,7 H. Enquist,8 P. Zalden,2 T. Hu,9 J. Goodfellow,9 M.-J. Sher,9,2 M. C. Hoffmann,10 D. Zhu,10 H. Lemke,10 J. Glownia,10 M. Chollet,10 A. R. Damodaran,11 J. Park,12 Z. Cai,3 I. W. Jung,13 M. J. Highland,14 D. A. Walko,3 J. W. Freeland,3 P. G. Evans,12 A. Vailionis,15 J. Larsson,16 K. A. Nelson,6 A. M. Rappe,4 ...

Ferroelectric-like metallic state in electron doped BaTiO3

We report that a ferroelectric-like metallic state with reduced anisotropy of polarization is created by the doping of conduction electrons into BaTiO3, on the bases of x-ray/electron diffraction and infrared spectroscopic experiments. The crystal structure is heterogeneous in nanometer-scale, as enabled by the reduced polarization anisotropy. The enhanced infrared intensity of soft phonon alon...

Ferroelectric phase transition in individual single-crystalline BaTiO3 nanowires.

We report scanned probe characterizations of the ferroelectric phase transition in individual barium titanate (BaTiO3) nanowires. Variable-temperature electrostatic force microscopy is used to manipulate, image, and evaluate the diameter-dependent stability of ferroelectric polarizations. These measurements show that the ferroelectric phase transition temperature (TC) is depressed as the nanowi...