Anomalous Raman modes in tellurides
F. J. Manjón, Samuel Gallego‐Parra, P. Rodríguez‐Hernández, Alfonso Muñoz, Č. Drašar, V. Muñoz‐Sanjosé, Oliver Oeckler
Abstract
We demonstrate that the anomalous Raman bands found in bulk and 2D tellurides (selenides) correspond to clusters or precipitates of trigonal Te (Se) in the form of nanosize or microsize polycrystalline grains or layers that are segregated from the samples.
Topics & Concepts
Raman spectroscopyMaterials scienceCrystalliteTrigonal crystal systemCrystallographyCondensed matter physicsCrystal structureOpticsMetallurgyChemistryPhysicsChalcogenide Semiconductor Thin FilmsPhase-change materials and chalcogenidesAdvanced Semiconductor Detectors and Materials