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Magnetic force microscopy analysis of magnetization reversal in exchange-biased Co/CoO nanostructure arrays
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10.1063/1.3248240
/content/aip/journal/apl/95/16/10.1063/1.3248240
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/16/10.1063/1.3248240

Figures

Image of FIG. 1.
FIG. 1.

(a) SEM image of a nanostructured Co/CoO sample, (b) AFM topographic scan of an array of rectangular dots at zero applied field, and (c) MFM scan performed after field cooling under at 50 K.

Image of FIG. 2.
FIG. 2.

First hysteresis cycles obtained by SQUID and MFM measurements at a temperature of 50 K. The letters highlight the magnetic fields of selected MFM images shown in Figs. 3 and 4.

Image of FIG. 3.
FIG. 3.

MFM scans of a surface area performed along the descending field branch at (a) −100 mT, (b) −110 mT, (c) −130 mT, (e) −150 mT, and (f) −175 mT. (d) shows an overview scan of a surface area at .

Image of FIG. 4.
FIG. 4.

MFM scans of a surface area performed along the ascending branch of the hysteresis cycle at (g) , (h) , and (i) .

Tables

Generic image for table
Table I.

Magnetization values derived from MFM analysis. is the average magnetization of the array. The other magnetization values represent the average local magnetizations calculated by summing over the neighbor atoms of each given atom.

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/content/aip/journal/apl/95/16/10.1063/1.3248240
2009-10-20
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic force microscopy analysis of magnetization reversal in exchange-biased Co/CoO nanostructure arrays
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/16/10.1063/1.3248240
10.1063/1.3248240
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