Title: Directed assembly of nano-scale phase variants in highly strained BiFeO3 thin films
Authors: Zhou, Jian
Trassin, Morgan
He, Qing
Tamura, Nobumichi
Kunz, Martin
Cheng, Chun
Zhang, Jinxing
Liang, Wen-I
Seidel, Jan
Hsin, Cheng-Lun
Wu, Junqiao
Department of Materials Science and Engineering
Issue Date: 15-Sep-2012
Abstract: The delicate balance between elastic energy and electrostatic energy in highly strained BiFeO3 (BFO) thin films results in complex mixed-phase patterns, which poses significant challenges for theoretical understanding and complicates the realization of its full potential in magnetoelectric, electromechanical, and photovoltaic devices. In this letter, we explore in-plane electric field induced phase transition in strain engineered BFO thin films and elucidate the mechanism behind the assembly behavior of complex nano-scale phase domains. Our approach enables deterministic control of phase variants with well-defined structures and orientation, paving the way for designing novel data storage devices based on mixed phase BFO. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4752395]
URI: http://dx.doi.org/10.1063/1.4752395
ISSN: 0021-8979
DOI: 10.1063/1.4752395
Volume: 112
Issue: 6
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