论文信息 - Raman scattering study of multiferroic BiFeO3 single crystal

Raman scattering study of multiferroic BiFeO3 single crystal

Abstract Raman scattering spectra of bulk BiFeO3 single crystals have been measured in the temperature range of 4–1200 K. All Raman active phonon modes predicted by the group theory were observed at 4 K and assigned by a polarized measurement. Moreover, we have found drastic changes of Raman spectra at 600–700 and 1000–1100 K. These changes were discussed in combination with magnetic ordering and structural phase transition.

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