Phonon dispersion in solid DC1 I |
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| Authors: | W Press DE Cox JD Axe G Shirane J Harada Y Fujii S Hoshino |
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| Institution: | Nagoya University, Chigusa-ku, Nagoya, Japan;Institute for Solid State Physics, University of Tokyo, Minato-ku, Tokyo 106, Japan |
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| Abstract: | Phonon dispersion curves in DC1 at 109 K have been determined. Values of the zero-sound elastic constants C11 = (6.29±0.23), C12 = (3.95±0.22) and C44 = (2.47±0.12) × 1010 dyn cm? re obtained from fitting the data to a harmonic Born-von-Kármán model. This implies a deviation from the Cauchy relation δ = ?0.38±0.08. |
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