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Now showing items 11-14 of 14
Bulk FePt-based nanocomposite magnets with enhanced exchange coupling
(AIP, 2007)
High density bulk FePt/Fe3Pt nanocomposite magnets have been prepared by high-pressure warm compaction of chemically synthesized FePt and Fe3O4 nanoparticles. It is found that the density increases with the compaction ...
Structural phase transition and ferromagnetism in monodisperse 3 nm FePt particles
(AIP, 2007)
FePt nanoparticles with a size of 3 nm and thermally stable room-temperature ferromagnetism are investigated. The monodisperse nanoparticles were prepared by chemical synthesis and a salt-matrix annealing technique. ...
High thermal stability of carbon-coated L10-FePt nanoparticles prepared by salt-matrix annealing
(AIP, 2008)
Monodisperse L10-FePt nanoparticles with size ranging from 3 to 8 nm were prepared by the salt-matrix annealing method. It was observed that the annealed particles have high thermal stability—no sintering occurred even ...
Mechanism of the anomalous temperature dependence of coercivity in Sm(Co, Fe, Cu, Zr)z high temperature magnets
(AIP, 2006)
Coercivity mechanism of the precipitation-hardened Sm Co,Fe,Cu,Zr z high-temperature magnets
was found to vary with temperature by measurements of reversible magnetization. The
magnetization reversal is mainly controlled ...