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Full-Text Articles in Physics
Geometry And Magnetism Of L10 Nanostructures, Kory D. Sorge, Ralph Skomski, Maria Daniil, Steven A. Michalski, L. Gao, Jian Zhou, M. Yan, Yucheng Sui, Roger D. Kirby, Sy_Hwang Liou, David J. Sellmyer
Geometry And Magnetism Of L10 Nanostructures, Kory D. Sorge, Ralph Skomski, Maria Daniil, Steven A. Michalski, L. Gao, Jian Zhou, M. Yan, Yucheng Sui, Roger D. Kirby, Sy_Hwang Liou, David J. Sellmyer
Roger Kirby Publications
The fabrication and magnetism of L10 nanostructures with different shapes (such as nanoparticles and nanotubes) is investigated. These nanostructures are produced by hydrogen processing and focused ion beam milling. The structures exhibit interesting reversal modes and are of present or potential interest for sensors and imaging, as well as magnetic recording.
Highly Coercive Thin-Film Nanostructures, Jian Zhou, Ralph Skomski, Arti Kashyap, Kory D. Sorge, Yucheng Sui, Maria Daniil, L. Gao, M. L. Yan, Sy_Hwang Liou, Roger D. Kirby, David J. Sellmyer
Highly Coercive Thin-Film Nanostructures, Jian Zhou, Ralph Skomski, Arti Kashyap, Kory D. Sorge, Yucheng Sui, Maria Daniil, L. Gao, M. L. Yan, Sy_Hwang Liou, Roger D. Kirby, David J. Sellmyer
Department of Physics and Astronomy: Faculty Publications
The processing, structure, and magnetism of highly coercive Sm–Co and FePt thin-film nanostructures are investigated. The structures include 1:5 based Sm–Co–Cu–Ti magnets, particulate FePt:C thin films, and FePt nanotubes. As in other systems, the coercivity depends on texture and imperfections, but there are some additional features. A specific coercivity mechanism in particulate media is a discrete pinning mode intermediate between Stoner-Wohlfarth rotation and ordinary domain-wall pinning. This mechanism yields a coercivity maximum for intermediate intergranular exchange and explains the occurrence of coercivities of 5 T in particulate Sm–Co–Cu–Ti magnets.