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Effect of the synthetic antiferromagnetic polarizer layer rigidness on the spin transfer torque switching current density
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10.1063/1.4816358
/content/aip/journal/apl/103/4/10.1063/1.4816358
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/4/10.1063/1.4816358
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The typical STT-MRAM structure. F are ferromagnetic layers, and NM, I, and AFM are the non-magnetic, insulator, and antiferromagnetic layers, respectively. The positive current density is defined from the bottom to the top, and -axis is the long axis of the ellipse.

Image of FIG. 2.
FIG. 2.

Switching current density of (a) AP to P state (b) P to AP state dependence of the IEC energy for various exchange stiffness constant (1.0, 2.0, and 3.0 × 10 J/m) for collinear polarizer layer. (c) and (d) The same plots for the non-collinear polarizer layer with 10° of tilting angle.

Image of FIG. 3.
FIG. 3.

Time dependence normalized magnetization -component (/) for each layer for  = 3.0 × 10 J/m for the collinear polarizer case. (a)  = −2.0 × 10 J/m with the switching current density of −3.59 × 10 A/m and (b)  = −2.0 × 10 J/m the collinear polarizer case with the switching current density of −3.16 × 10 A/m.

Image of FIG. 4.
FIG. 4.

(a) Time dependence normalized magnetization -component (/) for each layer for  = 3.0 × 10 J/m and  = −2.0 × 10 J/m for the non-collinear polarizer case with tilting angle of 10° for the switching current density of 1.56 × 10 A/m. (b) The time dependent magnetization angle from positive -axis for F and F layers.

Image of FIG. 5.
FIG. 5.

Fast Fourier Transform of normalized magnetization -component (/) for  = − 2.0 × 10 and × 10 J/m cases for F and F layers. The solid lines are for  = −2.0 × 10 J/m and dashed lines are  = −2.0 × 10 J/m, respectively.

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/content/aip/journal/apl/103/4/10.1063/1.4816358
2013-07-22
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of the synthetic antiferromagnetic polarizer layer rigidness on the spin transfer torque switching current density
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/4/10.1063/1.4816358
10.1063/1.4816358
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