Observation of a central peak in lead germanite by light scattering

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1016/0038-1098(76)90751-1
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FormatText
TypeArticle
Journal titleSolid State Communications
ISSN0038-1098
Volume20
Issue7
Pages703–707
Abstract
Brillouin-Raman scattering measurements on single domain lead germanate over the temperature interval 300–455 K reveal an unresolved (less than 80 MHz) central peak. At about Tc−20 K this peak begins to increase in intensity, reaching a maximum at Tc, and then falls away rapidly with increasing temperature above the transition. The central peak anomalous intensity, which is visible to the naked eye, is much larger than the intensity contributions due to phonons, including the ferroelectric soft mode, and appears to be a static effect.
Publication date
PublisherElsevier
LanguageEnglish
Peer reviewedYes
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NPARC number23000211
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Record identifier5ae7689b-bec7-4acf-a669-c288d1fc1bed
Record created2016-06-21
Record modified2016-07-14
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