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  First- and second-order Raman spectra of galena (PbS)

Smith, G. D., Firth, S., Clark, R. J. H., & Cardona, M. (2002). First- and second-order Raman spectra of galena (PbS). Journal of Applied Physics, 92(8), 4375-4380.

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 Creators:
Smith, G. D.1, Author           
Firth, S., Author
Clark, R. J. H., Author
Cardona, M.1, Author           
Affiliations:
1Former Departments, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370502              

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 Abstract: Raman spectra of cleaved, millimeter-sized single crystals of
mineral galena (PbS) have been measured between 100 and 1200
cm(-1) over the temperature range 80 to 373 K. Three low wave
number bands are observed which can be reconciled with the
results of earlier reports. However, changes in the peak wave
numbers and in the relative intensities of these bands in
response to changes in temperature do not conform with previous
assignments for the observed bands. Detailed assignments are
proposed which are based on resonance Raman processes. The
observed bands are assigned to forbidden longitudinal optical
excitations, which are allowed under resonance conditions by a
Frohlich interaction mechanism, and two-phonon excitations. (C)
2002 American Institute of Physics.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 7156
ISI: 000178318000030
 Degree: -

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Title: Journal of Applied Physics
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 92 (8) Sequence Number: - Start / End Page: 4375 - 4380 Identifier: ISSN: 0021-8979