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Exchange-compelled vortices on magnetic core-shell cylinders and their spin-transfer torque driven dynamics
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10.1063/1.3132090
/content/aip/journal/jap/105/10/10.1063/1.3132090
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/10/10.1063/1.3132090
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

[(a)–(c)] Schematics of a hard magnetic dot, a soft magnetic ring, and a cylinder composed of the dot and the ring, and [(d)–(f)] magnetic ground states for these elements.

Image of FIG. 2.
FIG. 2.

Temporal evolution of the current-driven vortex on the 200-nm-wide cylinder under . The top two rows show the snapshots of the magnetization distribution at indicated times, the bottom left two panels depict the BP injection into [panel (k)] and ejection out of [panel (l)] the cylinder, and the bottom right three panels illustrate the internal field distribution corresponding to the snapshots [(h)–(j)]. The colors and arrows (Ref. 19) encode the out-of-plane and in-plane components of the magnetization/internal field, respectively.

Image of FIG. 3.
FIG. 3.

Temporal evolution of the current-driven vortex on the 200-nm-wide cylinder under . [(a)–(g)] Snapshots of the magnetization configuration at indicated times, and the bottom left three panels represent the internal field profiles corresponding to the snapshots [(a)–(c)]. The colors display the out-of-plane magnetization/internal field, while the arrows (Ref. 19) indicate the in-plane magnetization/internal field.

Image of FIG. 4.
FIG. 4.

Switching time vs the current density. The points marked with squares, rhombi, and triangles correspond to the -, -, and -mode reversal processes, respectively. The solid lines connecting discrete data points are used only as a guide to the eyes. The inset shows a clean vortex on the 80-nm-wide cylinder formed right after the reversal.

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/content/aip/journal/jap/105/10/10.1063/1.3132090
2009-05-26
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Exchange-compelled vortices on magnetic core-shell cylinders and their spin-transfer torque driven dynamics
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/10/10.1063/1.3132090
10.1063/1.3132090
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