Isotopic study of Raman active phonon modes in β-Ga<sub>2</sub>O<sub>3</sub>
Benjamin M. Janzen, Piero Mazzolini, Roland Gillen, Andreas Falkenstein, Manfred Martin, Hans Tornatzky, Janina Maultzsch, Oliver Bierwagen, Markus R. Wagner
Abstract
The Raman-active phonon modes of β-Ga<sub>2</sub>O<sub>3</sub> in two O isotope compositions are studied by theory and experiment. Raman modes dominated by different, inequivalent O lattice sites were identified and can be used for the investigation of point defects.
Topics & Concepts
Raman spectroscopyPhononMaterials scienceKinetic isotope effectLattice (music)Raman scatteringIsotopeCrystallographic defectCondensed matter physicsMolecular physicsCrystallographyAtomic physicsDeuteriumPhysicsChemistryOpticsQuantum mechanicsAcousticsGa2O3 and related materialsZnO doping and propertiesAdvanced Photocatalysis Techniques