Dynamical Properties of a Disordered Crystal: Adamantane—C 10 D 16
- 1 April 1979
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 52 (1), 11-25
- https://doi.org/10.1080/00268947908071717
Abstract
Inelastic neutron scattering measurements on C10D16 show the existence of underdamped collective librational modes with temperature-independent frequency widths. A preliminary dynamical model, with no adjustable parameters, shows that the observed widths are consistent with the existing quasi-static disorder. Direct measurements of the orientational pair correlation function by means of elastic neutron scattering agree with the prediction of a simple Ising model. Intensity measurements between room-temperature and the ordering temperature (T c = 208.6K) indicate that the orientational correlations develop very slowly as T → T c.Keywords
This publication has 15 references indexed in Scilit:
- Lattice vibrations in a disordered crystal: adamantane in plastic phaseJournal of Physics C: Solid State Physics, 1978
- An X-ray diffuse-scattering study of the ordered, cubic,F\overline{4}3mphase of adamantane (tricyclo[3.3.1.13,7]decane)Acta Crystallographica Section A, 1978
- Critical Slowing Down of Orientational Fluctuations in a Plastic CrystalPhysical Review Letters, 1974
- Theory of Inelastic Neutron Scattering from Orientationally Disordered Molecular Crystals, with Particular Application to NBr and NClPhysical Review B, 1973
- Short-range order in ND4Br studied by diffuse neutron scatteringActa Crystallographica Section A, 1971
- Lattice Vibrations in Deuterated Ammonium Chloride at 85°K. I. ExperimentalPhysical Review B, 1971
- Intermolecular dynamics of hexamethylenetetramineProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1970
- Phonons, Torsons, and Rotational Diffusion in AdamantanePhysica Status Solidi (b), 1968
- The crystal structure of adamantane: an example of a false minimum in least squaresActa Crystallographica, 1967
- Phase transition and crystal structures of adamantaneActa Crystallographica, 1965