TY - JOUR
KW - Anisotropy
KW - Oxide
KW - Perovskite
KW - Oxides
KW - Substrates
KW - Chemistry
KW - Nanostructured materials
KW - Nanostructures
KW - Bismuth compounds
KW - Article
KW - Single crystals
KW - Titanium
KW - Calcium compounds
KW - Single-crystal substrates
KW - Calcium derivative
KW - Nanomaterial
KW - Nanopillars
KW - Self-assembly
KW - Perovskite spinel nanostructures
KW - Surface energy anisotropy
KW - Interfacial energy
KW - Aluminum Oxide
KW - Magnesium Oxide
KW - Spinel
AU - H Zheng
AU - Q Zhan
AU - F Zavaliche
AU - M Sherburne
AU - F Straub
AU - M.P Cruz
AU - L.-Q Chen
AU - Ulrich Dahmen
AU - Ramamoorthy Ramesh
AB - We report a discovery that self-assembled perovskite-spinel nanostructures can be controlled simply by selecting single-crystal substrates with different orientations. In a model BiFeO 3-CoFe 2O 4 system, a (001) substrate results in rectangular-shaped CoFe 2O 4 nanopillars in a BiFeO 3 matrix; in contrast, a (111) substrate leads to triangular-shaped BiFeO 3 nanopillars in a CoFe 2O 4 matrix, irrespective of the volume fraction of the two phases. This dramatic reversal is attributed to the surface energy anisotropy as an intrinsic property of a crystal. © 2006 American Chemical Society.
BT - Nano Letters
DO - 10.1021/nl060401y
LA - eng
M1 - 7
N1 - cited By 211
N2 - We report a discovery that self-assembled perovskite-spinel nanostructures can be controlled simply by selecting single-crystal substrates with different orientations. In a model BiFeO 3-CoFe 2O 4 system, a (001) substrate results in rectangular-shaped CoFe 2O 4 nanopillars in a BiFeO 3 matrix; in contrast, a (111) substrate leads to triangular-shaped BiFeO 3 nanopillars in a CoFe 2O 4 matrix, irrespective of the volume fraction of the two phases. This dramatic reversal is attributed to the surface energy anisotropy as an intrinsic property of a crystal. © 2006 American Chemical Society.
PY - 2006
SP - 1401
EP - 1407
T2 - Nano Letters
TI - Controlling self-assembled perovskite-spinel nanostructures
VL - 6
SN - 15306984
ER -