2 papers
cond-mat.mtrl-sci2025
Goldstone-mediated polar instability in hexagonal barium titanate
S. Simpson, U. Dey, R. J. Sjökvist +5
We discover a rare structural manifestation of the Goldstone paradigm in a hexagonal polytype of the archetypal ferroelectric BaTiO3. First-principles calculations confirm the Gold…
cond-mat.mtrl-sci2025
Superstructure reflexions in tilted perovskites Part 1
Richard Beanland, Robin Sjokvist
The superstructure spots that appear in diffraction patterns of tilted perovskites are well documented and easily calculated using crystallographic software. Here, by considering a…