Strain-driven phase boundaries in BiFeO 3 thin films studied by atomic force microscopy and x-ray diffraction

Heng-Jui Liu,2,3 Chen-Wei Liang,1 Wen-I Liang,1 Hsiang-Jung Chen,1 Jan-Chi Yang,1 Chun-Yen Peng,1 Guang-Fu Wang,4 Feng-Nan Chu,4 Yi-Chun Chen,4 Hsin-Yi Lee,3 Li Chang,1 Su-Jien Lin,2 and Ying-Hao Chu1 1Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan 2Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan 3National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan 4Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan (Received 26 June 2011; revised manuscript received 8 December 2011; published 17 January 2012)

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