6533b855fe1ef96bd12afda9
RESEARCH PRODUCT
High-pressure Raman investigation of high index facets bounded alpha-Fe2O3 pseudocubic crystals
Divya Neravathu GopiJuan Angel SansM. Junaid BushiriVirginia MonteseguroVirginia Montesegurosubject
Materials scienceBeta-Fe2O3 pseudocubic crystals02 engineering and technology01 natural sciencesMolecular physicssymbols.namesake0103 physical sciencesIron oxideGeneral Materials ScienceFacet010306 general physicsAqueous solution021001 nanoscience & nanotechnologyCondensed Matter PhysicsSymmetry (physics)High pressureStructural stabilityBounded functionFISICA APLICADARaman spectroscopysymbols0210 nano-technologyRaman spectroscopyIntensity (heat transfer)Alfa-Fe2O3Curse of dimensionalitydescription
[EN] High index facet bounded alpha-Fe2O3 pseudocubic crystals has gained the attention of the scientific community due to its promising electrochemical sensing response towards aqueous ammonia. The structural stability of alpha-Fe2O3 pseudocubic crystals is investigated through high-pressure Raman spectroscopy up to 22.2 GPa, and those results are compared with our ab initio theoretical calculations. The symmetry of the experimental Raman-active modes has been assigned by comparison with theoretical data. In addition to the Raman-active modes, two additional Raman features are also detected, whose intensity increases with compression. The origin of these two additional peaks addressed in this study, reveals a strong dependence on the geometry and the low dimensionality as the most plausible explanation
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-02-24 |