Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 11, Issue 7, Pages G30-G32Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.2912024
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Multiferroic thin films of Ni-substituted BiFeO(3) were grown by chemical-solution deposition on Pt/Ti/SiO(x)/Si(100) substrates. Films with up to 7.5 atom % Ni substitution showed a single perovskite phase with rhombohedral structure at room temperature, while films with 10 atom % Ni substitution showed a tetragonal-like crystal structure. Ni substitution of 2.5 atom % was effective in suppressing leakage current in the high-electric-field region with high polarization (72 mu C/cm(2)) and coercive field (340 kV/cm) when polarization vs electric field hysteresis loops were drawn at 20 kHz with a maximum electric field of 1100 kV/cm. (C) 2008 The Electrochemical Society.
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