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XRD θ-2θ scans of L10 FePt(5), FePt(5)/[Co(0.2)/Pt(0.3)]24 (ECC-I-24), and FePt(5)/[Co(0.2)/Pt(0.6)]15 (ECC-II-15). Both ECC composites have the same thickness. The diffraction peaks are marked with the dotted line.
The transmission electronic microscopy images of the FePt/[Co/Pt]N samples: ECC-II-5 (a), ECC-II-15(b), and the high resolution image of ECC-II-5 (c). The inset of (c) is the lattice image and lattice parameters.
The hysteresis loops and reversal curves of the ECC-II samples: ECC-II-5 (a) and ECC-II-15 (b), respectively.
The dependences of coercivity HC and remanent coercivity HCR on the thickness tS of soft Co/Pt multilayers for ECC-I-N (a) and ECC-II-N (b), respectively.
The angular dependences of coercivity HC and remanent coercivity HCR for ECC-I-8 (a) and ECC-II-7 (b), respectively. The dashed-dotted line indicates the simulated results of switching field.1
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