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Reduced spin transfer torque switching current density with non-collinear polarizer layer magnetization in magnetic multilayer systems
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10.1063/1.4730376
/content/aip/journal/apl/100/25/10.1063/1.4730376
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/25/10.1063/1.4730376
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Figures

Image of FIG. 1.
FIG. 1.

The typical STT-MRAM structure. F1,2,3 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 x-axis is the long axis of the ellipse. The average magnetization angle, , for F3 are also depicted.

Image of FIG. 2.
FIG. 2.

The stable magnetization configurations of (a) and (d) for F1, (b) and (e) for F2, and (c) and (f) for F3 layers with  = 5 and 20°, respectively.

Image of FIG. 3.
FIG. 3.

Jc as a function of for m3/A (blue circles, green triangles, and red rectangles). The blue solid horizontal line indicates J = 2.25 × 1011 A/m2.

Image of FIG. 4.
FIG. 4.

Time dependency of the average magnetization of F1, mx (a) from 0 to 12 ns, (b) from 0 to 3.5 ns for  = 0, 5, 10, 15, 20 and 30° with J = 2.25 × 1011 A/m2. The insets are snapshots of the spin configuration of the switching layer for  = 0 and 30° at t = 6.08 and 4.21 ns, respectively.

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/content/aip/journal/apl/100/25/10.1063/1.4730376
2012-06-22
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Reduced spin transfer torque switching current density with non-collinear polarizer layer magnetization in magnetic multilayer systems
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/25/10.1063/1.4730376
10.1063/1.4730376
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