A RELATIONSHIP BETWEEN SOUND SPEED AND A NONRADIATIVE RELAXATION PROCESS IN SODIUM CRYPTAND SODIDE

Authors
PARK TR
Citation
Tr. Park, A RELATIONSHIP BETWEEN SOUND SPEED AND A NONRADIATIVE RELAXATION PROCESS IN SODIUM CRYPTAND SODIDE, Solid state communications, 98(8), 1996, pp. 727-731
Citations number
13
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
98
Issue
8
Year of publication
1996
Pages
727 - 731
Database
ISI
SICI code
0038-1098(1996)98:8<727:ARBSSA>2.0.ZU;2-8
Abstract
The wavefunction of the spatially extended excitonic state in sodium c ryptand sodide is calculated in a semi-continuum approach. The magnitu de of the lattice relaxation energy in a breathing mode induced by the electronic charge redistribution is computed in terms of the wavefunc tion. The sound speed in sodium cryptand sodide is estimated based on the fact that the lattice relaxes sufficiently to have a nonradiative deexcitation of the spatially extended state.