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Spin-torque switching window, thermal stability, and material parameters of MgO tunnel junctions
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10.1063/1.3576937
/content/aip/journal/apl/98/16/10.1063/1.3576937
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/16/10.1063/1.3576937

Figures

Image of FIG. 1.
FIG. 1.

Quasistatic properties vs bias voltages. (a) Resistance vs easy axis field curves when a vanishing (black curve) or finite hard axis field is applied. [(b)–(f)] switching field astroids in constant positive (rectangles) or negative (circles) applied voltage. The gray astroids recall the 100 mV astroid. DOW stands for direct overwrite region.

Image of FIG. 2.
FIG. 2.

Resistance fluctuations under 400 mV for hard axis fields of (a) 5.2 mT, (b) 6.1 mT, and (c) 6.8 mT. Note that the timescale is reduced by 100 from panel (a) to (c). Panel (d) plot of the square of the difference of the voltages of the two metastable states vs the square of the hard axis field, and linear fits using Eq. (2) for various voltages.

Image of FIG. 3.
FIG. 3.

High frequency current noise (log scale) spectroscopy under 100 mV dc for hard (a) and easy (c) axis fields. [(c) and (d)] Deduced spin wave frequencies and corresponding fits.

Tables

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Table I.

Magnetic properties of the 2 nm thick free layer.

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/content/aip/journal/apl/98/16/10.1063/1.3576937
2011-04-18
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spin-torque switching window, thermal stability, and material parameters of MgO tunnel junctions
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/16/10.1063/1.3576937
10.1063/1.3576937
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