BFO Mixed Phase Film (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption In this atomic force microscopy topography image of a special mixed phase bismuth ferrite sample, red and green shaded areas indicate two sets of mixed phase regions oriented at 90 degrees to each other. Credit Image from Ramesh group Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.