Abstract
The inelastic neutron scattering (INS) spectra of some ammonium halides and ammonium nitrate are analyzed in terms of the internal vibrations of the NH+4 ion convoluted with multiphonon lattice modes up to the eighth term. Due to the low mass of this ion, most of the intensity of the internal-mode region of the INS spectra is in the ‘‘phonon wings,’’ differences between the salts in this spectral region being mainly due to differences in their lattice-mode spectra. Refinement of the lattice Debye–Waller factor is included in the profile refinement of interatomic force constants.
References
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 9:12 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 10, 2024, 5:51 a.m.) |
Indexed | 1 year, 6 months ago (Feb. 10, 2024, 6:11 a.m.) |
Issued | 35 years, 10 months ago (Nov. 1, 1989) |
Published | 35 years, 10 months ago (Nov. 1, 1989) |
Published Print | 35 years, 10 months ago (Nov. 1, 1989) |
@article{Tomkinson_1989, title={Phonon wings in inelastic neutron scattering spectroscopy: The harmonic approximation}, volume={91}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.457615}, DOI={10.1063/1.457615}, number={9}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Tomkinson, J. and Kearley, G. J.}, year={1989}, month=nov, pages={5164–5169} }