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Magnetic domain-wall depinning with reduced current density by short pulse rise time
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10.1063/1.3518486
/content/aip/journal/apl/97/24/10.1063/1.3518486
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/24/10.1063/1.3518486
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scanning-electron micrograph of the permalloy wire. Leads are labeled with L1 and L2.

Image of FIG. 2.
FIG. 2.

Eight measurements for the dependence of the magnetoresistance of the wire on the magnetic field in -direction. Prior to the measurement a domain wall has been generated in the curvature of the wire. One curve (gray) shows a different depinning field.

Image of FIG. 3.
FIG. 3.

Depinning probability of a head-to-head wall for (a) different external magnetic fields and pulse-rise times and a constant current density of . The pulse width is 10 ns. (b) Depinning probability for different pulse amplitudes and pulse-rise times with a constant pulse width of 10 ns and magnetic field of . Inset of (a) shows the definition of the pulse parameters. is the rise time, is the pulse length, and is the pulse amplitude.

Image of FIG. 4.
FIG. 4.

Acceleration of a domain wall with a damping time of 8 ns due to different pulse shapes. The width is 10 ns for all pulses. The rise time is 2 ns for (c) and (d) and 10 ns for (a) and (b). The current density is for (a) and (c) and for (b) and (d).

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/content/aip/journal/apl/97/24/10.1063/1.3518486
2010-12-13
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic domain-wall depinning with reduced current density by short pulse rise time
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/24/10.1063/1.3518486
10.1063/1.3518486
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