Dramatically enhanced polarization in (001), (101), and (111) BiFeO3 thin films due to epitiaxial-induced transitions

Date
2004-06-01Author
Li, Jiefang
Wang, J. L.
Wuttig, Manfred
Ramesh, R.
Wang, Naigang
Ruette, B.
Pyatakov, Alexander P.
Zvezdin, A. K.
Viehland, Dwight D.
Metadata
Show full item recordAbstract
Dramatically enhanced polarization has been found for (001), (101), and (111) films, relative to that of BiFeO3 crystals. The easy axis of spontaneous polarization lies close to (111), for the various oriented films. BiFeO3 films grown on (111) have a rhombohedral structure, identical to that of single crystals; whereas films grown on (101) or (001) are monoclinically distorted from the rhombohedral structure, due to the epitaxial constraint. (C) 2004 American Institute of Physics.