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Perfect spin-filter and spin-valve in carbon atomic chains
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10.1063/1.3299264
/content/aip/journal/apl/96/4/10.1063/1.3299264
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/4/10.1063/1.3299264
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

A schematic device model of carbon atomic chains bridging two zigzag graphene nanoribbon leads. The red frame indicates the left leads while the blue one indicates the right leads. The scattering region includes the carbon chain and the surface layers. The direction of electron transport is along the carbon atomic chain labeled as .

Image of FIG. 2.
FIG. 2.

The spin-dependent electron transmission at zero bias. [(a) and (b)] Spin transmission of with the antiparallel/parallel spin orientation of two leads. [(c) and (d)] Spin transmission of with the antiparallel/parallel spin orientation of two leads. [(e) and (f)] show surfaces of the constant spin-resolved local DOS evaluated at the Fermi level.

Image of FIG. 3.
FIG. 3.

The spin-resolved curve of with the parallel/antiparallel spin orientation of two leads. The inset is bias-voltage dependent magnetoresistance.

Image of FIG. 4.
FIG. 4.

(a) TSP and (b) MR as a function of number of carbon atoms in chain at zero bias.

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/content/aip/journal/apl/96/4/10.1063/1.3299264
2010-01-26
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Perfect spin-filter and spin-valve in carbon atomic chains
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/4/10.1063/1.3299264
10.1063/1.3299264
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