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Phonon anomalies and phonon-spin coupling in oriented PbFe0.5Nb0.5O3 thin films
(American Physical Society, 2011-01-18)
We present Raman data on both single-crystal and thin-film samples of the multiferroic PbFe0.5Nb0.5O3 (PFN). We show first that the number and selection rules of Raman lines are compatible with a face-centered-cubic Fm-3m ...