6533b7cffe1ef96bd1258c75
RESEARCH PRODUCT
Disorder-induced Raman scattering in rhenium trioxide (ReO3)
Enzo CazzanelliAlexei KuzminJ. PuransJ. PuransGino Mariottosubject
Materials scienceAnnealing (metallurgy)Analytical chemistryMineralogyCondensed Matter PhysicsCrystalCondensed Matter::Materials Sciencesymbols.namesakechemistry.chemical_compoundRhenium trioxideX-ray Raman scatteringchemistryCondensed Matter::SuperconductivitysymbolsGeneral Materials SciencePenetration depthRaman spectroscopyRaman scatteringPerovskite (structure)description
Raman scattering in cubic metallic perovskite (ReO3) was studied at room temperature for well-crystallized monolith, polycrystalline powder and thin film samples. Defect-induced first-order Raman scattering was detected from the sub-surface region, given by the penetration depth of a 633 nm laser, and its origin was explained on the basis of a rigid-ion vibrational model for bulk ReO3. A quenching of the Raman intensity was observed in crystalline monolithic ReO3 upon increasing the temperature up to 250 °C and was related to crystal surface reconstruction/annealing.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-05-03 | Journal of Physics: Condensed Matter |