%0 Journal Article %A X.S Xu %A T.V Brinzari %A Sang Hoon Lee %A Y.H Chu %A L.W Martin %A A Kumar %A S McGill %A R.C Rai %A Ramamoorthy Ramesh %A V Gopalan %A S.W Cheong %A J.L Musfeldt %B Physical Review B - Condensed Matter and Materials Physics %D 2009 %G eng %R 10.1103/PhysRevB.79.134425 %T Optical properties and magnetochromism in multiferroic BiFeO3 %V 79