Suppression of octahedral tilts and associated changes in electronic properties at epitaxial oxide heterostructure interfaces
Publication Type | Journal Article
|
---|
Authors | |
---|---|
DOI |
10.1103/PhysRevLett.105.087204
|
Abstract |
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 BiFeO3-La0.7Sr 0.3MnO3 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 BiFeO3 and elucidate associated changes in electronic properties in a thin layer directly adjacent to the interface. © 2010 The American Physical Society.
|
Notes |
cited By 253
|
Journal |
Physical Review Letters
|
Volume |
105
|
Year of Publication |
2010
|
Number |
8
|
ISSN Number |
00319007
|
Keywords |
|
Research Areas | |
Download citation |