Applied Physics Letters · 1991 · 54 citations · 6 references
Natural SciencesMaterials SciencePhysicsAcousticsMaterials CharacterizationMaterials PhysicsAcoustic MaterialsAcoustic MeasurementAcoustic Wave PropagationCrystalline MaterialsPhysical AcousticsThin Film Mechanical PropertiesBrillouin ScatteringCrystal ElasticityElastic ConstantsPhononsRayleigh ScatteringWave Propagation In Solids
We report on Brillouin light scattering investigations on chemical-vapor-deposited polycrystalline diamond films. Besides the longitudinal and two transverse acoustic bulk phonons, a Rayleigh surface mode is observed. From the bulk modes the elastic constants c11, c12, and c44 of 1062±74, 122±8, and 541±22 GPa, respectively, are determined exhibiting the characteristic values of natural diamond. The observed Rayleigh mode sound velocity of 10326±470 m/s is consistent with the (110) texture of the polycrystalline film and the determined elastic constants.
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Brillouin scattering in diamond
M. Grimsditch, A. K. Ramdas · Physical review. B, Solid state · 1975 · 432 citations