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Comment: phonon spectrum of molecular crystals from exciton sidebands

✍ Scribed by R. Kopelman; F.W. Ochs; P.N. Prasad

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
404 KB
Volume
29
Category
Article
ISSN
0009-2614

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✦ Synopsis

Phonon sidebands of excitons in molecular crystals with n&igii~~ sma3 excitation exchjlge intern&ions, inchiding isotopic guest systems, are not, in genera& expected to be pre~o~~t1~ weighted by translatbnal modes that are predictable from iM.louin zoine centre (q = 0) ones. Sdme phonon sideband data ofi naphthalene, hexa-mcthyIbcnzene, etc. are dixussed and argued to map the extent of the phonon density-of-states as well as some of theq+ 0 singuIa#es. '.

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