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A spin-valve device based on dumbbell-shaped graphene nanoislands
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10.1063/1.3630229
/content/aip/journal/apl/99/8/10.1063/1.3630229
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/8/10.1063/1.3630229
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic view of a dumbbell-shaped graphene nanoisland between two electrodes. Two hexagonal nanoislands with zigzag edges are connected by a armchair nanoribbon.

Image of FIG. 2.
FIG. 2.

(Color online) Local spin densities of the ground (lower) and first excited (upper) antiferromagnetic states. Dark and gray colors correspond to different types of spin.

Image of FIG. 3.
FIG. 3.

(Color online) Local spin densities of two ferromagnetic states. Upper: parallel spins at the edges of two hexagonal nanoislands. Lower: anti-parallel spins. Dark and gray colors correspond to different types of spin.

Image of FIG. 4.
FIG. 4.

(Color online) The conductance of spin-polarized electrons through the device occupied by the ferromagnetic state as shown in the lower panel of Fig. 3, calculated as a function of electron energy.

Image of FIG. 5.
FIG. 5.

(Color online) The conductance of spin-polarized electrons through the device occupied by the ferromagnetic state as shown in the upper panel of Fig. 3, calculated as a function of electron energy. Solid and dashed lines are for different types of spin.

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/content/aip/journal/apl/99/8/10.1063/1.3630229
2011-08-22
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A spin-valve device based on dumbbell-shaped graphene nanoislands
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/8/10.1063/1.3630229
10.1063/1.3630229
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