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Lowering of the ordering temperature of FePt nanoparticles by ion irradiation
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10.1063/1.2472177
/content/aip/journal/apl/90/6/10.1063/1.2472177
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/6/10.1063/1.2472177
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) SEM micrographs of FePt nanoparticles prior (a) and after ion irradiation and annealing up to (b). The mean separation of the particles is . The size histogram of the particles is shown in the inset.

Image of FIG. 2.
FIG. 2.

XANES and XMCD spectra for external fields of for ion irradiated (a) and reference sample (b) and element-specific hysteresis loops [(c) and (d)] after H plasma reduction of oxides at . In (e) and (f) the room temperature hysteresis loops after annealing at are plotted.

Image of FIG. 3.
FIG. 3.

(Color online) Experimentally determined coercive fields as a function of annealing time at temperature for ion irradiated and reference sample at and . Additionally is also given after annealing at of the nonirradiated sample.

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/content/aip/journal/apl/90/6/10.1063/1.2472177
2007-02-07
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Lowering of the L10 ordering temperature of FePt nanoparticles by He+ ion irradiation
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/6/10.1063/1.2472177
10.1063/1.2472177
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