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Self consistent measurement and removal of the dipolar interaction field in magnetic particle assemblies and the determination of their intrinsic switching field distribution
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10.1063/1.4704397
/content/aip/journal/jap/111/8/10.1063/1.4704397
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/8/10.1063/1.4704397

Figures

Image of FIG. 1.
FIG. 1.

Major loop, DCD, and IRM remanence curves measured on sample S9 [NiFe].

Image of FIG. 2.
FIG. 2.

(a) IRM () and DCD () remanence curves measured on Ni sample S3. (b) Modified IRM, and remanence curves as a function of the field and (c) modified DCD, and remanence curves as a function of the field.

Image of FIG. 3.
FIG. 3.

Hysteresis deshearing of 4 different nanowires samples: (a) S3 [Ni], (b) S5 [Co], (c) S9 [NiFe], and (d) S11 [CoFe], the measured and corrected cycles are shown with dashed and continuous lines, respectively.

Image of FIG. 4.
FIG. 4.

As-measured SFD (filled circles with line) compared with the intrinsic SFD (continuous line) obtained for samples (a) S3 [Ni], (b) S6 [Co], (c) S8 [NiFe], and (d) S10 [CoFe].

Image of FIG. 5.
FIG. 5.

plots obtained from the as-measured and corrected DCD and IRM remanence curves for samples S3-Ni [(a) and (b)], S5-Co [(c) and (d)], and S9-NiFe [(e) and (f)].

Image of FIG. 6.
FIG. 6.

Comparison of the as measured and the corrected Henkel plots for samples (a) S4 [Co], (b) S8 [NiFe], and (c) S12 [CoFe], as a reference the Henkel plot of the non-interacting assembly is shown as a dashed line.

Image of FIG. 7.
FIG. 7.

plots obtained from the as-measured (continuous line) and corrected (dashed line) IRM and DCD remanence curves, for samples (a) S1 [Ni], (b) S5 [Co], and (c) S9 [NiFe].

Image of FIG. 8.
FIG. 8.

(a) plots obtained from the as-measured and corrected (for different values of ) IRM and DCD remanence curves, and (b) plots obtained using the second order mean field term [Eq. (7)] for sample S1 [Ni].

Tables

Generic image for table
Table I.

Wire diameter and nominal (average) membrane porosity P of the samples used in this study along with the measured values of , the interaction field and the rounding , done on .

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/content/aip/journal/jap/111/8/10.1063/1.4704397
2012-04-23
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Self consistent measurement and removal of the dipolar interaction field in magnetic particle assemblies and the determination of their intrinsic switching field distribution
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/8/10.1063/1.4704397
10.1063/1.4704397
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