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Morphology Dependent Magnetic Properties of Two-Dimensional α-Fe2O3 Ordered Nanostructured Arrays

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Magnetic properties of two-dimensional α-Fe2O3 ordered bowl-like pore and ring arrays, fabricated by solution-dipping on a colloidal monolayer, were studied. All the α-Fe2O3 nanostructured arrays exhibit weak ferromagnetic properties at room temperature, while the hysteresis loops strongly depend on the morphology of the arrays. Some novel magnetic properties, such as plateau regions and jumps in hysteresis loops, have been observed for the ring and bowl-like pore arrays at room temperature, respectively. The morphology-dependent magnetic properties will exhibit the potential applications in nanodevices, such as giant magnetoresistance spin-valve devices and magnetic data storage.
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Keywords: MAGNETIC PROPERTIES; MORPHOLOGY DEPENDENCE; α-Fe2O3 NANOSTRUCTURED ARRAYS

Document Type: Research Article

Publication date: May 1, 2009

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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