Disk substrate deposition techniques for monodisperse chemically synthesized FePt nanoparticle media
- 17 December 2003
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 83 (25) , 5253-5255
- https://doi.org/10.1063/1.1635980
Abstract
Self-assembled FePt nanoparticles hold promise for future ultrahigh-density magnetic recording media because of their high anisotropy and capability to be formed into small and uniform grains. By using a special spin coater, we were able to form a dense array of FePt particles across the entire surface of a 2.5 in. disk substrate. Our method can control the number of layers of FePt nanoparticles. The media deposited with FePt nanoparticles by the spin coater was annealed in a vacuum. We measured read–write properties of the FePt nanoparticle media on a spin stand, and succeeded in detecting a signal of 290 kfci.Keywords
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