Vp. Glazkov et al., Hybridization of libron and phonon modes in NH4I: Neutron spectroscopy studies at pressures up to 10 GPa, JETP LETTER, 74(8), 2001, pp. 415-417
Vibrational spectra of ammonium iodide NH4I were studied at pressures up to
10 GPa by incoherent inelastic neutron scattering. The pressure dependence
s of the frequencies of librational and transverse optical modes suggest th
at they are hybridized upon pressure buildup. (C) 2001 MAIK "Nauka/ Interpe
riodica".