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Experimental studies of strong dipolar interparticle interaction in monodisperse nanoparticles
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10.1063/1.2778758
/content/aip/journal/apl/91/10/10.1063/1.2778758
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/10/10.1063/1.2778758
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Figures

Image of FIG. 1.
FIG. 1.

TEM images of nanoparticles with three particle sizes (a) , (b) , and (c) (from top to bottom). The insets are high-resolution TEM images showing the good crystalline nature of the nanoparticles.

Image of FIG. 2.
FIG. 2.

(Color online) Zero-field-cooled (ZFC) and field-cooled (FC) magnetizations of the nanoparticles before and after being fully dispersed in solution. The interparticle distances in the solution are estimated to be about .

Image of FIG. 3.
FIG. 3.

(Color online) Variation of the blocking temperatures with the interparticle distance for (top) and (bottom) nanoparticles in solution. The solid lines (No. 1) are fit to a simple dipole-dipole interaction model, while the dashed line (No. 2) for the particles data is produced using a formula for the dipole-dipole interaction model with a log-normal distribution of interparticle distance. The first data point in each figure is for the undiluted powder samples.

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/content/aip/journal/apl/91/10/10.1063/1.2778758
2007-09-04
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental studies of strong dipolar interparticle interaction in monodisperse Fe3O4 nanoparticles
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/10/10.1063/1.2778758
10.1063/1.2778758
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