Hydrogen modes in KH${}_2$PO${}_4$ under pressure from ab initio calculation and inelastic neutron scattering

V. A. Abalmasov, A. S. Ivanov, R. A. Sadykov +1

The nature of the phonon triplet in the region of OH-stretching modes in hydrogen-bonded materials is often explained by the interplay of OH-stretching modes and combinations and o…