Applied Physics Letters · 2006 · 239 citations · 18 references
Natural SciencesMaterials EngineeringMaterials ScienceElectronic MaterialsMaterials ChemistryThin FilmsConductive MaterialsDopingElectrical CharacterizationElectrical ConductivityElectrical Properties Of CeramicsThin Film Electrical PropertiesConductionCurrent DensityDefect ChemistryDoping Effects On Electrical PropertiesDoping In Thin FilmsElectrical PropertiesOhmic ConductionOhmic Materials
Polycrystalline Mn-doped, Nb-doped, and pure BiFeO3 (BFO) films were fabricated via chemical solution deposition (CSD) method. Influence of Mn and Nb dopants on electric properties of BFO films were studied. The current density versus electric field (J-E) characteristics indicated that conduction mechanisms of Mn-doped, Nb-doped, and pure BFO films annealed at 500°C were Ohmic conduction, grain boundary limited conduction, and space charge limited conduction, respectively. The effect of Mn and Nb dopants on electric properties of BFO films was interpreted by defect chemistry and chemical reaction in the CSD process. The Nb dopant is effective in improving electrical properties of CSD-derived BFO films, while Mn is harmful in this respect.
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Epitaxial BiFeO <sub>3</sub> Multiferroic Thin Film Heterostructures
Junling Wang, Jeffrey B. Neaton, Haimei Zheng et al. · Science · 2003 · 6.2K citations · Full text
Natural Sciences, Materials Engineering, Materials Science +17
G. A. Smolenskiǐ, I. E. Chupis · Soviet Physics Uspekhi · 1982 · 1.2K citations