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Ultrafast switching of a nanomagnet by a combined out-of-plane and in-plane polarized spin current pulse
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10.1063/1.3176938
/content/aip/journal/apl/95/1/10.1063/1.3176938
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/1/10.1063/1.3176938
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Switching probability as the function of pulse amplitude for 100 ps, 600 ps, and 6 ns pulse widths . [(a) and (b)] Results for the CSV for (a) AP-P and (b) P-AP reversal. Inset: Schematic of the CSV device. [(c) and (d)] Results for the OPSV for the signs of current which give switching in conventional ST devices: (c) AP-P and (d) P-AP. Inset: Schematic of the OPSV device. [(e) and (f)] Results for the OPSV with the signs of current opposite to those needed for switching in conventional ST devices: (e) P-AP and (f) AP-P. Inset: Micromagnetic simulation of the configurations for the initial AP state. Color scale: Out-of-plane component of the normalized magnetization .

Image of FIG. 2.
FIG. 2.

Comparison of the reversal speed between the OPSV and CSV devices. The inverse of pulse widths is plotted as the function of the pulse amplitude that yields a 95% switching probability for: (a) P to AP and (b) AP to P reversals. For the OPSV device, pulse widths between 0.3 and 2 ns do not achieve 95% AP-P switching for any negative value of . Insets: The difference between the pulse current amplitudes that yield and as a function of for (a) P-AP and (b) AP-P. Large values of indicate a significant effect of thermal fluctuations on the reversal process.

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/content/aip/journal/apl/95/1/10.1063/1.3176938
2009-07-08
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrafast switching of a nanomagnet by a combined out-of-plane and in-plane polarized spin current pulse
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/1/10.1063/1.3176938
10.1063/1.3176938
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