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|Title:||Electric field driven phase transition and possible twining quasi-tetragonal phase in compressively strained BiFeO3 thin films||Authors:||Lu, Cheng-Liang
|Keywords:||DRNTU::Science::Physics||Issue Date:||2012||Source:||Lu, C. L., Liu, J. M., & Wu, T. (2012). Electric field driven phase transition and possible twining quasi-tetragonal phase in compressively strained BiFeO3 thin films. Frontiers of physics, 7(4), 424-428.||Series/Report no.:||Frontiers of physics||Abstract:||Highly compressively strained BiFeO3 thin films with different thickness are epitaxially grown on (001) LaAlO3 substrates and characterized using various techniques. The quasi-tetragonal phase with a giant axial ratio of ∼ 1.25 and its thickness-dependent evolution are investigated. An interesting twining structure of the quasi-tetragonal phase is evidenced in thicker films through detailed reciprocal space mapping, which becomes more pronounced with increasing film thickness. Moreover, an interesting electric-field driven phase transition was evidenced in the film with a thickness of 38 nm, in which the quasi-tetragonal and rhombohedral phases are close to each other in energy landscape.||URI:||https://hdl.handle.net/10356/100043
|DOI:||10.1007/s11467-011-0241-9||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||SPMS Journal Articles|
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