Observation of a central peak in lead germanite by light scattering

DOI	Resolve DOI: https://doi.org/10.1016/0038-1098(76)90751-1
Author	Search for: Lockwood, D. J.; Search for: Arthur, J. W.; Search for: Taylor, W.; Search for: Hosea, T. J.
Format	Text, Article
Journal title	Solid State Communications
ISSN	0038-1098
Volume	20
Issue	7
Pages	703–707
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	1976
Publisher	Elsevier
Language	English
Peer reviewed	Yes
NRC publication	This is a non-NRC publication "Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.
NPARC number	23000211
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Record identifier	5ae7689b-bec7-4acf-a669-c288d1fc1bed
Record created	2016-06-21
Record modified	2020-03-13