Orthorhombic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>BiFeO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>Jan‐Chi Yang, Ying‐Hao Chu, S.J. Suresha et al.|Physical Review Letters|2012Cited by 114