One-Step Synthesis of FePt Nanoparticles with Tunable Size
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- 18 June 2004
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 126 (27), 8394-8395
- https://doi.org/10.1021/ja047648m
Abstract
A one-step synthesis of FePt nanoparticles is reported. The size, composition, and shape of the particles are controlled by varying the synthetic parameters such as molar ratio of stabilizers to metal precursor, addition sequence of the stabilizers and metal precursors, heating rate, heating temperature, and heating duration. An assembly of large (6 nm or greater) FePt nanoparticles, especially oxide-coated FePt nanoparticles, can sustain higher temperature (up to 650 °C) annealing without noticeable particle sintering. Room temperature coercivity of an assembly containing discrete FePt dots can reach as high as 1.3 T, a value that is suitable for hard magnetic applications.Keywords
This publication has 12 references indexed in Scilit:
- Composition-dependent ratio of orbital-to-spin magnetic moment in structurally disorderednanoparticlesPhysical Review B, 2004
- Novel Synthesis of FePt Nanoparticles and Magnetic Properties of Their Self-assembled SuperlatticesChemistry Letters, 2004
- Bimagnetic Core/Shell FePt/Fe3O4 NanoparticlesNano Letters, 2003
- Direct Synthesis of fct-FePt Nanoparticles by Chemical RouteJapanese Journal of Applied Physics, 2003
- Electronic properties of 4-nm FePt particlesPhysical Review B, 2003
- Exchange-coupled nanocomposite magnets by nanoparticle self-assemblyNature, 2002
- Structural studies of L10 FePt nanoparticlesApplied Physics Letters, 2002
- Reduction of the fcc to L10 Ordering Temperature for Self-Assembled FePt Nanoparticles Containing AgNano Letters, 2002
- Efficient Activation of Aromatic C-H Bonds for Addition to C-C Multiple BondsScience, 2000
- Thermal effect limits in ultrahigh-density magnetic recordingIEEE Transactions on Magnetics, 1999