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Phonon dispersion and heat capacity in polyoxacyclobutane modification I |
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| Authors: | Subodh Kumar Deepika ChaturvediAshika Jain Poonam Tandon C.M. Nautiyal |
| Affiliation: | a Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow-226007, India b Department of Physics, University of Lucknow, University Road, Lucknow-226007, India |
| Abstract: | Normal modes of vibration and their dispersion for polyoxacyclobutane modification I (POCB I) have been obtained by using Urey-Bradley force field and the Wilson's GF matrix method as modified by Higgs. Characteristic features of the dispersion curves such as crossing, repulsion and regions of high density-of-states have been explained. Heat capacity measurements have been interpreted and the limitations of the present work discussed. |
| Keywords: | Polyoxacyclobutane modification I Dispersion curves Heat capacity Density-of-states Polymer hydrate |
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