標題: Suppression of Octahedral Tilts and Associated Changes in Electronic Properties at Epitaxial Oxide Heterostructure Interfaces
作者: Borisevich, A. Y.
Chang, H. J.
Huijben, M.
Oxley, M. P.
Okamoto, S.
Niranjan, M. K.
Burton, J. D.
Tsymbal, E. Y.
Chu, Y. H.
Yu, P.
Ramesh, R.
Kalinin, S. V.
Pennycook, S. J.
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 19-八月-2010
摘要: Epitaxial oxide interfaces with broken translational symmetry have emerged as a central paradigm behind the novel behaviors of oxide superlattices. Here, we use scanning transmission electron microscopy to demonstrate a direct, quantitative unit-cell-by-unit-cell mapping of lattice parameters and oxygen octahedral rotations across the BiFeO(3)-La(0.7)Sr(0.3)MnO(3) interface to elucidate how the change of crystal symmetry is accommodated. Combined with low-loss electron energy loss spectroscopy imaging, we demonstrate a mesoscopic antiferrodistortive phase transition near the interface in BiFeO(3) and elucidate associated changes in electronic properties in a thin layer directly adjacent to the interface.
URI: http://dx.doi.org/10.1103/PhysRevLett.105.087204
http://hdl.handle.net/11536/32290
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.105.087204
期刊: PHYSICAL REVIEW LETTERS
Volume: 105
Issue: 8
結束頁: 
顯示於類別:期刊論文