Journal
PHYSICAL REVIEW B
Volume 73, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.73.132101
Keywords
-
Ask authors/readers for more resources
We report a temperature-dependent Raman scattering investigation of the multiferroic material bismuth ferrite BiFeO3 (BFO). The observed loss of the Raman spectrum at the ferroelectric Curie temperature T-C should be in agreement with a cubic Pm3m structure of the high-temperature paraelectric phase. Surprisingly, the ferroelectric-to-paraelectric phase transition is not soft-mode driven, indicating a nonconventional ferroelectric. Furthermore, our results reveal pronounced phonon anomalies around the magnetic Neel temperature T-N. We tentatively attribute these anomalies to the multiferroic character of BFO.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available