Related Experiment Video
Updated: Feb 11, 2026

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
Published on: January 6, 2016
Remarkable impact of low BiYbO3 doping levels on the local structure and phase transitions of BaTiO3
M Deluca1,2, Z G Al-Jlaihawi3, K Reichmann4
1Materials Center Leoben Forschung GmbH , Roseggerstrasse 12 , 8700 Leoben , Austria .
Abstract:
In situ Raman spectroscopy shows the simultaneous incorporation of small amounts of Bi3+ and Yb3+ into the lattice of BaTiO3 to break the average symmetry inferred from X-ray powder diffraction analysis and permittivity measurements. In particular, Bi3+ with a stereochemically active lone-pair of electrons induces severe lattice strain and the coexistence of different local crystal symmetries over a wide temperature range, effectively controlling the physical properties, such as the temperature dependence of the permittivity and the Curie temperature. These results show that compositional gradients based in small variations of these two dopants could successfully explain the enhanced thermal stability of the permittivity in core-shell type ceramics, whereas the lower capacitance of the shell can also cap the maximum permittivity at the Curie temperature.
More Related Videos
Related Concept Videos
Phase Transitions
Phase Transitions: Sublimation and Deposition
Phase Transitions: Melting and Freezing
Phase Transitions: Vaporization and Condensation
Phase Diagrams
Properties of Transition Metals

