Rao, K. R. ; Trevino, S. F. ; Prask, H. ; Mical, R. D. (1971) Lattice dynamics of KN3 Physical Review B: Condensed Matter and Materials Physics, 4 (12). pp. 4551-4555. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v4/i12/p4551_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.4.4551
Abstract
In this paper we report the measurement of several acoustic-phonon modes in KN3. Results for the longitudinal and doubly degenerate transverse modes along the [00µ] directions and the longitudinal and one transverse mode (polarized along the c axis) propogating along the [µµ0] direction are presented. The measurements are compared with a calculation based on a rigidion model. The model includes point charges at the position of the cation and at the center of the anion. The short-range repulsive interaction is a modified Huggins-Mayer potential with the cation treated as spherical and the anion as an ellipsoid of revolution. Adequate agreement is obtained with the present neutron-scattering measurement and with recent infrared and Raman results.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 34605 |
| Deposited On: | 11 May 2011 09:20 |
| Last Modified: | 11 May 2011 09:20 |
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