Ferroelectrics · 2006 · 14 citations · 10 references
Natural SciencesMaterials EngineeringMaterials ScienceElectronic MaterialsMagnetic MaterialsThin FilmsAntiferromagnetic MaterialsAntiferromagnetismCurie TemperatureMagnetic OxidesMemory DevicesMultiferroic MaterialsAntiferromagnetic Thin FilmsEpitaxial Thin FilmsExchange BiasMultiferroic OxidesNeel TemperatureNéel TemperaturePulsed Laser DepositionThin-film Multiferroics
Among multiferroic materials, BiFeO3 (BFO) is much attractive owing to its high Curie temperature (T c ) and Neel temperature (T N ), which presents opportunities for potential device applications at room temperature. Single phase and epitaxial BFO thin films were deposited on SrRuO3 /SrTiO3 substrates by pulsed-laser deposition method. BFO film showed the remnant polarization of as large as 45 μ C/cm2 and strong immunity for the fatigue cycles up to 109. In addition, the antiferromagnetic nature of BFO film was confirmed by clear appearance of exchange bias of 50 Oe in spin valve system. And, based on the observed multiferroic properties of BFO film, we proposed a novel multi-bit memory cell.
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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
Magnetic control of ferroelectric polarization
T. Kimura, Takeshi Goto, Hiroyuki Shintani et al. · Nature · 2003 · 4.7K citations
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Comment on "Epitaxial BiFeO <sub>3</sub> Multiferroic Thin Film Heterostructures"
W. Eerenstein, Finlay D. Morrison, Joonghoe Dho et al. · Science · 2005 · 568 citations
Large Electric Polarization and Exchange Bias in Multiferroic BiFeO<sub>3</sub>
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