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Simulation of multilevel cell spin transfer switching in a full-Heusler alloy spin-valve nanopillar
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10.1063/1.4789867
/content/aip/journal/apl/102/4/10.1063/1.4789867
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/4/10.1063/1.4789867
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Model geometry definition of CFAS(2 nm)/Ag(4 nm)/CFAS(20 nm) nanopillar in Cartesian coordinates. (b) Cross section of the free layer for a coordinate transformation four-fold magnetocrystalline anisotropic field H k.

Image of FIG. 2.
FIG. 2.

Temporal evolutions of the average normalized magnetization components 〈mx 〉, 〈my 〉, and 〈mz 〉 for (a) −90° state at −4.0 × 106 A/cm2, (b) 90° state at −8.0 × 106 A/cm2, (c) 90° state at −4.0 × 106 A/cm2 and 1 Oe, and (d) −90° state at −8.0 × 106 A/cm2 and −1 Oe.

Image of FIG. 3.
FIG. 3.

Snapshots of magnetization distribution of the 250 × 190 nm2 ellipse. The colors represent the average magnetization component of 〈mz 〉 (purple −x, blue +x, yellow −y, and green +y domains).

Image of FIG. 4.
FIG. 4.

The resistance as a function of current density (R-J) curves of CFAS/Ag/CFAS current perpendicular to the plane GMR nanopillar after the coordinate transformation of magnetic anisotropy. Insets also show the coordinate system and the domain structures (a–e). The colors of domains represent the average magnetization component of 〈mz〉 (yellow equals to zero).

Image of FIG. 5.
FIG. 5.

Temporal evolutions of the average normalized magnetization components 〈mx 〉, 〈my 〉, and 〈mz 〉 (a) 0° → 45° state at −1.0 × 107 A/cm2, (b) 45° → 180° state at 3.0 × 107 A/cm2, (c) the trajectories from 0°→ 45° and 45°→ 180°, (d) 180° → 135° state at 7.0 × 106 A/cm2, (e) 135°→ 45° state at −1.5 × 108 A/cm2, (f) 45° → 0° state at −3.0 × 108 A/cm2, (g) the trajectories from 180° → 135°, 135° → 45°, and 45° → 0°.

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/content/aip/journal/apl/102/4/10.1063/1.4789867
2013-01-29
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Simulation of multilevel cell spin transfer switching in a full-Heusler alloy spin-valve nanopillar
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/4/10.1063/1.4789867
10.1063/1.4789867
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