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One-dimensional alignment of nanoparticles via magnetic sorting
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10.1063/1.3405732
/content/aip/journal/apl/96/16/10.1063/1.3405732
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/16/10.1063/1.3405732

Figures

Image of FIG. 1.
FIG. 1.

MnAs film grown on GaAs. (a) Topography of the film with an rms roughness of 2.3 nm, (b) Magnetic field gradient measured with the AFM data; (c) FFT of the data in (a), with no evidence for order, (d) FFT of the data in (b), with two peaks due to the stripes.

Image of FIG. 2.
FIG. 2.

scans of nanoparticles on MnAs film. (a) AFM data showing the linear alignment of the nanoparticles, (b) MFM data replace with: confirming alignment of the nanoparticles follows the magnetic order.

Image of FIG. 3.
FIG. 3.

scans revealing long range alignment. (a) Topography data with (b) Fourier transform of the data presented in (a). The alignment results in two peaks in the FFT; (c) MFM, showing underlying MnAs domains, with (d) the Fourier transform of (c). The peaks in (d) match those of (b) confirming the dots line up with the MnAs domains.

Image of FIG. 4.
FIG. 4.

nanoparticles on MnAs. (a) AFM, revealing no nanoparticle alignment, (b) FFT of the data in (a), (c) MFM, showing MnAs domains, (d) the Fourier transform of (c) confirming domain alignment. Taken together this shows the film magnetic order did not affect the nanoparticles deposition.

Image of FIG. 5.
FIG. 5.

Magnetic field strength due to the MnAs film from the finite-element simulation. The line 5 nm above the surface indicates the center position of the nanoparticles.

Tables

Generic image for table
Table I.

Data extracted from the FFTs in Fig. 3.

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/content/aip/journal/apl/96/16/10.1063/1.3405732
2010-04-19
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: One-dimensional alignment of nanoparticles via magnetic sorting
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/16/10.1063/1.3405732
10.1063/1.3405732
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