Lattice dynamics and the spectroscopic signatures of H-bond disorder in $\delta$-AlOOH

Chenxing Luo, Sangjoon Lee, Hongjin Wang +2

Raman and infrared anomalies associated with H-bond symmetrization in $\delta$-AlOOH, including mode softening and linewidth broadening at 5-10 GPa, occur at significantly lower pressur…