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Rashba spin-orbit effect on the zero conductance and the magnetoresistance of a quantum ring
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10.1063/1.2942402
/content/aip/journal/jap/103/11/10.1063/1.2942402
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/11/10.1063/1.2942402
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The one-dimensional ring symmetrically coupled to ferromagnetic leads and interrupted by a tunnel barrier in the lower arm.

Image of FIG. 2.
FIG. 2.

The spin-dependent conductance against . for (a) and (b); (, ) for (c) and (d). The solid and dashed lines correspond to and . In the presence of SOC shown in (e) and (f) (with , , and ).

Image of FIG. 3.
FIG. 3.

Conductance amplitude for antiparallel configuration of the magnetic moments of the two ferromagnetic electrodes as the function of the . Spin-up and spin-down with for (a) and with and for (b). The solid and dashed lines correspond to and .

Image of FIG. 4.
FIG. 4.

Conductance resonances as a function of different values of the AB flux under the condition of the Rashba spin-orbit parameter . [(a) and (b)] Tunnel barrier ; [(c) and (d)] .

Image of FIG. 5.
FIG. 5.

The spin-dependent conductance against Rashba spin-orbit parameter . Under the condition of tunnel barrier and . The solid, dashed, and dotted lines correspond to , , and .

Image of FIG. 6.
FIG. 6.

TMR for the different Rashba parameter and tunnel barrier strength against for (a) , (b) , and (c) , respectively.

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/content/aip/journal/jap/103/11/10.1063/1.2942402
2008-06-13
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Rashba spin-orbit effect on the zero conductance and the magnetoresistance of a quantum ring
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/11/10.1063/1.2942402
10.1063/1.2942402
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