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Lattice dynamics and force constant calculation for the Raman and infra-red wave numbers of cubic bismuth-based pyrochlore compounds

EngineeringPhysicsForce Constant CalculationNatural SciencesApplied PhysicsPhysical ChemistryComputational ChemistryQuantum ChemistryChemistryLattice DynamicsCrystallographyCrystal Structure DesignSpectra-structure CorrelationAb-initio MethodInfra-red Wave Numbers