Beilstein J. Nanotechnol.2011,2, 40–46, doi:10.3762/bjnano.2.5
the fraction of atoms that residing in antiphase boundaries.
In experiments, the presence of different domains has also been observed by dark-field (DF) transmission electron microscopy [18]. In consequence, the total ordered volume fraction has been determined by combining DF images from three
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Figure 1:
Comparison of simulated ordering kinetics in bulk FePt alloys with results from annealing experimen...
Beilstein J. Nanotechnol.2010,1, 101–107, doi:10.3762/bjnano.1.12
and the FM layer.
This CoO layer is estimated to be between 1 to 4 nm thick. Although it was not possible to resolve such a CoO layer from the high-resolution TEM images (Figure 2), dark-field TEM images (Figure 4a) reveal the presence of a crystalline ~4 nm thick layer being well distinguishable from
panel: AFM images of the Co surface for the non-ion-milled (c) and ion-milled (d) samples.
Magnetic hysteresis loops at 330 K and 15 K for a monolayer film of nanoparticles (a) and the composite nanoparticle/Co film non-ion-milled (b) and after ion-milling (c).
(a) Dark-field TEM image of the cross
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Figure 1:
AFM (a) and SEM (b) images showing the self-assembly of the NPs in a close-packed hexagonal structu...