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Shape control of FePt nanocrystals

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Shape control of FePt nanocrystals

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dc.contributor.author Poudyal, Narayan
dc.contributor.author Chaubey, Girija Shankar
dc.contributor.author Rong, Chuanbing
dc.contributor.author Liu, J. Ping
dc.date.accessioned 2010-08-10T16:16:08Z
dc.date.available 2010-08-10T16:16:08Z
dc.date.issued 2009-04-06 en_US
dc.identifier.citation J. Appl. Phys. 105 07A749 (2009) en_US
dc.identifier.issn 0021-8979
dc.identifier.uri http://hdl.handle.net/10106/4992
dc.description Preceedings of the 53rd Annual Conference on Magnetism and Magnetic Materials.Hard Magnetic Materials en_US
dc.description.abstract : FePt nanocrystals were prepared by simultaneous reduction of platinum acetylacetonate and thermal decomposition of iron pentacarbonyl in properly chosen solvents/surfactants. A variety of FePt nanocrystals, including nanowires, nanorods, nanocubes, and nanosized multipods, were successfully obtained. The shape control was realized by simply varying synthesis parameters. The as-synthesized nanocrystals, having chemically disordered fcc structure, are found to be superparamagnetic at room temperature and their ferromagnetic-superparamagnetic transition temperature is size dependent that increases with particle size. The as-synthesized FePt nanocrystals were transformed to the chemically ordered L10 structure upon heat treatment, which exhibits hard magnetic properties with coercivity as high as 25 kOe. en_US
dc.description.sponsorship Preceedings of the 53rd Annual Conference on Magnetism and Magnetic Materials.Hard Magnetic Materials en_US
dc.language.iso en_US en_US
dc.publisher American Institute of Physics en_US
dc.subject coercive force en_US
dc.subject heat treatment en_US
dc.subject magnetic transitions en_US
dc.subject iron alloys en_US
dc.subject nanotechnology en_US
dc.subject nanowires en_US
dc.subject particle size en_US
dc.subject platinum alloys en_US
dc.subject pyrolysis en_US
dc.subject superparamagnetism en_US
dc.subject surfactants en_US
dc.title Shape control of FePt nanocrystals en_US
dc.type Article en_US
dc.publisher.department Department of Physics, The University of Texas at Arlington en_US
dc.identifier.externalLink http://link.aip.org/link/JAPIAU/v105/i7/p07A749/s1 en_US
dc.identifier.externalLinkDescription External link to the published article en_US

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