TY - JOUR
KW - Thin films
KW - Pulsed laser deposition
KW - Chemical analysis
KW - Stoichiometry
KW - Perovskite
KW - Lattice constants
KW - Substrates
KW - Crystal structure
KW - Polarization
KW - Epitaxial growth
KW - Bismuth compounds
KW - Single crystals
KW - X-rays
KW - Crystalline materials
KW - Rhombohedral structures
KW - Magnetoelectric effects
KW - Paramagnetic resonance
KW - Spontaneous polarization
KW - Curie temperature
KW - Synchrotron x-rays
KW - Remanence
AU - J Li
AU - J Wang
AU - M Wuttig
AU - Ramamoorthy Ramesh
AU - N Wang
AU - B Ruette
AU - A.P Pyatakov
AU - A.K Zvezdin
AU - D Viehland
AB - The changes induced by epitaxial constraint in ferroelectric polarization and in crystal lattice parameters of (001), (101), and (111) films, relative to that of BiFeO 3 crystals were investigated. An enhanced polarization for these films was observed. The phase-pure BiFeO 3 (BFO) thin films were grown using pulsed laser deposition technique on these single crystals. The easy axis of spontaneous polarization was found to lie close to (111), for the various oriented films. The results show that BiFeO 3 films grown on (111) have a rhombohedral structure, and films grown on (101) or (001) are monoclinically distorted from the rhombohedral structure, due to the epitaxial constraint.
BT - Applied Physics Letters
DO - 10.1063/1.1764944
LA - eng
M1 - 25
N1 - cited By 511
N2 - The changes induced by epitaxial constraint in ferroelectric polarization and in crystal lattice parameters of (001), (101), and (111) films, relative to that of BiFeO 3 crystals were investigated. An enhanced polarization for these films was observed. The phase-pure BiFeO 3 (BFO) thin films were grown using pulsed laser deposition technique on these single crystals. The easy axis of spontaneous polarization was found to lie close to (111), for the various oriented films. The results show that BiFeO 3 films grown on (111) have a rhombohedral structure, and films grown on (101) or (001) are monoclinically distorted from the rhombohedral structure, due to the epitaxial constraint.
PY - 2004
SP - 5261
EP - 5263
T2 - Applied Physics Letters
TI - Dramatically enhanced polarization in (001), (101), and (111) BiFeO 3 thin films due to epitiaxial-induced transitions
VL - 84
SN - 00036951
ER -