Electric-field-controlled antiferromagnetic domains in epitaxial BiFeO3 thin films probed by neutron diffraction

W. Ratcliff II,1,* Zahra Yamani,2 V. Anbusathaiah,3,† T. R. Gao,3 P. A. Kienzle,1 H. Cao,4 and I. Takeuchi3 1NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA 2Canadian Neutron Beam Centre, National Research Council, Chalk River Laboratories, Chalk River, Ontario, Canada K0J 1J0 3Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20424, USA 4Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA (Received 10 October 2012; revised manuscript received 4 February 2013; published 15 April 2013)