Raman spectroscopy on cubic and hexagonal SrMnO$_3$

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dc.creatorSacchetti, A.
dc.creatorBaldini, M.
dc.creatorPostorino, P.
dc.creatorMartin, C.
dc.creatorMaignan, A.
dc.date2005-09-19
dc.date.accessioned2026-07-07T08:30:36Z
dc.date.available2026-07-07T08:30:36Z
dc.descriptionWe report on the first optical characterization of both cubic and hexagonal SrMnO$_3$. Room-temperature Raman spectra collected by means of a micro-Raman spectrometer are shown. The spectrum of the cubic compound is characterized by weak and broad bands in agreement with group-theory which predicts no Raman-active phonons for this compound. On the other hand, the spectrum of the hexagonal compound shows six narrow peaks ascribed to one-phonon processes. A complete polarization analysis of the spectra collected from a single crystallite allows us to completely assign the symmetries of the six observed peaks. Atomic displacements for each phonon peaks are also proposed.
dc.description5 pages, 5 figures, 3 tables, submitted to Journal of Raman Spectroscopy
dc.identifierhttps://arxiv.org/abs/cond-mat/0509468
dc.identifierhttp://arxiv.org/abs/cond-mat/0509468
dc.identifierJ Raman Spectrosc 37, 591 (2006)
dc.identifierdoi:10.1002/jrs.1484
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138276
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleRaman spectroscopy on cubic and hexagonal SrMnO$_3$
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