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Lattice dynamics of lithium niobate

1974; IOP Publishing; Volume: 7; Issue: 6 Linguagem: Inglês

10.1088/0022-3719/7/6/001

1747-3802

M. R. Chowdhury, G. E. Peckham, R. Ross, D H Saunderson,

Acoustic Wave Resonator Technologies

Room-temperature measurements of the frequencies of normal modes propagating along the c-direction in LiNbO3 have been carried out by inelastic scattering of neutrons. Altogether eight branches of the phonon dispersion relation, covering a frequency range of up to approximately 10 THz, have been determined.