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A molecular model for the vibrational modes in chalcogenide glasses

✍ Scribed by G. Lucovsky; Richard M. Martin


Book ID
118919329
Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
264 KB
Volume
8-10
Category
Article
ISSN
0022-3093

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Spurious states arise naturally in the description of molecular vibrational excitations. In the harmonic approximation such states can be projected out from the physical space exactly. This is in general not the case when anharmonic interactions are considered. We show that within the framework of t