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Alternating current magnetic susceptibility of a molecular magnet submonolayer directly patterned onto a micro superconducting quantum interference device
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10.1063/1.3609859
/content/aip/journal/apl/99/3/10.1063/1.3609859
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/3/10.1063/1.3609859
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) SEM image of the SQUID showing the four rectangular shaped pick-up coils with effective areas of 63 μm × 250 μm. (b) Finite element calculation of the excitation magnetic field (B p) created by a i p = 500 μA current flowing through the primary coil, approximated by a circular spire. (c) Numerical calculations of α as a function of the distance from the center of the pick-up coil wire towards the center of the coil, approximated also by a circle. The inset shows a 3-D cross section of the pick-up and primary coil wires, where the α profile has been superimposed.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Schematic representation of the nanoparticle deposition, by DPN, on the most active areas of the sensor. (b) SEM images of a sensor right after depositing three rows of CoO@Apoferritin dots. (c) and (d) AFM images and topographic profiles of CoO@Apoferritin dots deposited onto SiO2 and Nb substrates, respectively.

Image of FIG. 3.
FIG. 3.

(Color online) Top: in-phase ac magnetic susceptibility of 107 CoO@Apoferritin molecules arranged as a (sub)monolayer. The out-of-phase component lies below the sensitivity limits of detection and it is therefore not shown. Bottom: in-phase susceptibility of ∼10−9 Kg of CoO@Apoferritin (∼1012 units).

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/content/aip/journal/apl/99/3/10.1063/1.3609859
2011-07-20
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Alternating current magnetic susceptibility of a molecular magnet submonolayer directly patterned onto a micro superconducting quantum interference device
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/3/10.1063/1.3609859
10.1063/1.3609859
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