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Phonon spectra of pure and acceptor doped BaZrO3 investigated with visible and UV Raman spectroscopy
Journal of Physics: Condensed Matter
We report results from visible and UV Raman spectroscopy studies of the phonon spectra of a polycrystalline sample of the prototypical perovskite type oxide BaZrO3 and a 500 nm thick film of its Y-doped, proton conducting, counterpart BaZr0.8Y0.2O2.9. Analysis of the Raman spectra measured using different excitation energies (between 3.44 eV and 5.17 eV) reveals the activation of strong resonance Raman effects involving all lattice vibrational modes. Specifically, two characteristic energiesdoi:10.1088/1361-648x/ab95d1 pmid:32628643 fatcat:woa3ahzsnvdtrd55ew36ygsxcq