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Space-charge trap mediated conductance blockade in tunnel junctions with half-metallic electrodes
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10.1063/1.3025851
/content/aip/journal/apl/93/19/10.1063/1.3025851
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/19/10.1063/1.3025851
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

EDS profile of the LSMO/STO/LSMO tunnel junction. Black bars indicate the nominal positions of the interfaces. The rising background is probably caused by the wedge-shaped TEM specimen. Inset: High-resolution TEM image of the junction.

Image of FIG. 2.
FIG. 2.

Conductance as a function of bias and temperature for junction 1. (a) , no blockade is seen; (b) , the blockade is evident. Inset: conductance is zero below and increases with above.

Image of FIG. 3.
FIG. 3.

for 10 and . The curve for is shifted by for visibility. Vertical bars highlight the oscillations.

Image of FIG. 4.
FIG. 4.

(a) Temperature dependence of zero bias conductance for junctions 1 and 3. The fit for junction 1 is with and . (b) Tunneling current as a function of the magnetic field at and different bias voltages. Inset: TMR as a function of bias under different magnetic fields at .

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/content/aip/journal/apl/93/19/10.1063/1.3025851
2008-11-11
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Space-charge trap mediated conductance blockade in tunnel junctions with half-metallic electrodes
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/19/10.1063/1.3025851
10.1063/1.3025851
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