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Spin filtering through ferrimagnetic tunnel barriers
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10.1063/1.2172647
/content/aip/journal/apl/88/8/10.1063/1.2172647
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/8/10.1063/1.2172647
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) M(H) hysteresis cycle of a 7.3 nm NFO single film measured at 10 K, with the field applied in-plane along [100]. The dashed line indicates the NFO bulk magnetization. Inset: Saturation magnetization vs the reciprocal film thickness. (b) Average resistance extracted from CTAFM resistance mappings on trilayers, plotted in function of the NFO thickness. The inset in (b) is a AFM scan of a LSMO/STO/NFO sample.

Image of FIG. 2.
FIG. 2.

Typical resistance vs magnetic field dependence of junction. The inset shows the curve taken at a field of 7 kG.

Image of FIG. 3.
FIG. 3.

Temperature dependence of the TMR for a (circles) and a spin filter (squares). The inset shows the resistance normalized to the resistance in the parallel state vs field, at a several temperatures for the filter. The curves are offset for clarity.

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/content/aip/journal/apl/88/8/10.1063/1.2172647
2006-02-23
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spin filtering through ferrimagnetic NiFe2O4 tunnel barriers
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/8/10.1063/1.2172647
10.1063/1.2172647
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