Degenerate Soft Modes and Selective Condensation in BaAl${}_2$O${}_4$ via Inelastic X-ray Scattering

Yui Ishii, Arisa Yamamoto, Alfred Q. R. Baron +2

BaAl${}_2$O${}_4$ is a ferroelectric material that exhibits structural quantum criticality through chemical composition tuning. Although theoretical calculations and several diffractio…