Ultrafast spectroscopy of localised vibrational modes in amorphous silicon using a free electron laser

TitleUltrafast spectroscopy of localised vibrational modes in amorphous silicon using a free electron laser
Publication TypeJournal Article
Year of Publication2004
AuthorsJ.PR Wells, E.D van Hattum, R.EI Schropp, P.J Phillips, A.A Carder, F Habraken, J.I Dijkhuis
JournalPhysica Status Solidi B-Basic Research
Volume241
Number15
Pagination3474-3479
Date PublishedDec
Type of ArticleArticle
ISBN Number0370-1972
Accession NumberISI:000225807600006
KeywordsDYNAMICS
Abstract

Ultrafast vibrational relaxation of localised modes associated with hydrogen, deuterium and oxygen in amorphous silicon based alloys are discussed. The availability of internal defect vibrations to act as accepting modes is discovered to be a crucial factor in the population decay dynamics. Phase relaxation is shown to have both a temperature dependent component due to elastic phonon scattering as well as an excitation dependence contributed by non-equilibrium phonons. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

URL<Go to ISI>://000225807600006
Division

GUTHz

Department

FELIX

PID

7990ffed31c5dbd44e86b6db17a143cc

Alternate TitlePhys. Status Solidi B-Basic Res.

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