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A three-terminal spin filter induced by spin-orbit interaction in the presence of an antidot
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10.1063/1.2938072
/content/aip/journal/jap/103/12/10.1063/1.2938072
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/12/10.1063/1.2938072
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scheme of the T-shape conductor. The shaded circular area at the junction represents an antidot potential.

Image of FIG. 2.
FIG. 2.

The total conductance (upper panel) and spin-polarized conductance (lower panel) as a function of the Fermi energy for different potential heights . The inset of the lower panel shows the spin polarization .

Image of FIG. 3.
FIG. 3.

Top view of the Gaussian potential (left) and its curvature (right) at the junction.

Image of FIG. 4.
FIG. 4.

Charge distribution (left) and spin distribution (right) for and .

Image of FIG. 5.
FIG. 5.

Charge distribution (left) and spin distribution (right) for and .

Image of FIG. 6.
FIG. 6.

Scheme of the spin-dependent electron trajectories for (left) and (right). Solid red line indicates the electron trajectory with up-spin while dashed blue line indicates that with down-spin.

Image of FIG. 7.
FIG. 7.

The total conductance (upper panel) and spin-polarized conductance (lower panel) as a function of the Fermi energy for different strengths of disorder . The inset of the lower panel shows the spin polarization . The height of the antidot potential is . Ensemble average has been taken over samples.

Image of FIG. 8.
FIG. 8.

The total conductance (upper panel) and spin-polarized conductance (lower panel) as a function of the disorder for and , respectively. The inset of the lower panel shows the spin polarization . The Fermi energy is . Ensemble average has been taken over samples.

Image of FIG. 9.
FIG. 9.

The total conductance (upper panel) and spin-polarized conductance (lower panel) as a function of the Fermi energy for different strengths of RSOC . The inset of the lower panel shows the spin polarization . The height of the antidot potential is .

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/content/aip/journal/jap/103/12/10.1063/1.2938072
2008-06-17
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A three-terminal spin filter induced by spin-orbit interaction in the presence of an antidot
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/12/10.1063/1.2938072
10.1063/1.2938072
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