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Structurally manipulating electron-spin polarization via δ-doping in a magnetic nanostructure
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10.1063/1.4775761
/content/aip/journal/apl/102/2/10.1063/1.4775761
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/2/10.1063/1.4775761
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic illustration of the MMSN device with a FM stripe deposited on top of the semiconductor heterostructure and (b) the magnetic profile as well as the δ-doping in this device.

Image of FIG. 2.
FIG. 2.

(a) Energy dependence of transmission coefficient for spin electrons with wave vector and (b) spin-dependent conductance versus the Fermi energy, where the δ-doping is taken as and , dashed and dotted curves correspond to spin-up and spin-down electrons, respectively, and the inset shows the spin polarization.

Image of FIG. 3.
FIG. 3.

(a) Variation of spin polarization with Fermi energy for fixed weight of the δ-doping (solid curve), (dashed curve), and (dotted curve) and (b) spin polarization as the function of the weight of the δ-doping at certain Fermi energy (solid curve), (dashed curve), and (dotted curve), where the position of the δ-doping is .

Image of FIG. 4.
FIG. 4.

(a) Variation of spin polarization with Fermi energy for fixed position of the δ-doping (solid curve), (dashed curve) and (dotted curve) and (b) spin polarization as the function of the position of the δ-doping at certain Fermi energy (solid curve), (dashed curve) and (dotted curve), where the weight of the δ-doping is .

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/content/aip/journal/apl/102/2/10.1063/1.4775761
2013-01-15
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Structurally manipulating electron-spin polarization via δ-doping in a magnetic nanostructure
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/2/10.1063/1.4775761
10.1063/1.4775761
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