TY - JOUR
KW - Electron energy loss spectroscopy
KW - Transmission electron microscopy
KW - Phase transitions
KW - Oxygen
KW - Manganese oxide
KW - Scanning transmission electron microscopy
KW - Oxide superlattices
KW - Oxide interfaces
KW - Electronic properties
KW - Heterojunctions
KW - Crystal symmetry
KW - Energy dissipation
KW - Phase interfaces
KW - Mesoscopics
KW - Unit cells
KW - Lattice parameters
KW - Antiferrodistortive
KW - Heterostructure interfaces
KW - Low loss
KW - Octahedral rotations
KW - Thin layers
KW - Translational symmetry
AU - A.Y Borisevich
AU - H.J Chang
AU - M Huijben
AU - M.P Oxley
AU - S Okamoto
AU - M.K Niranjan
AU - J.D Burton
AU - E.Y Tsymbal
AU - Y.H Chu
AU - P Yu
AU - Ramamoorthy Ramesh
AU - S.V Kalinin
AU - S.J Pennycook
AB - 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.
BT - Physical Review Letters
DO - 10.1103/PhysRevLett.105.087204
LA - eng
M1 - 8
N1 - cited By 253
N2 - 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.
PY - 2010
T2 - Physical Review Letters
TI - Suppression of octahedral tilts and associated changes in electronic properties at epitaxial oxide heterostructure interfaces
VL - 105
SN - 00319007
ER -