Journal
APPLIED PHYSICS LETTERS
Volume 104, Issue 22, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4880655
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Funding
- IDEMA
- ASTC
- [23686100]
- [2013B1917]
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We investigated the Ag distribution in a FePtAg-C granular film that is under consideration for a heat assisted magnetic recording medium by aberration-corrected scanning transmission electron microscope-energy dispersive X-ray spectroscopy and X-ray absorption fine structure. Ag is rejected from the core of FePt grains during the deposition, forming Ag-enriched shell surrounding L1(0)-ordered FePt grains. Since Ag has no solubility in both Fe and Pt, the rejection of Ag induces atomic diffusions thereby enhancing the kinetics of the L1(0)-order in the FePt grains. (C) 2014 AIP Publishing LLC.
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