Current-Driven Switching in Magnetic Multilayer Nanopillars
S. Urazhdin, Norman O. Birge, W. P. Pratt Jr., J. Bass
TL;DR
This paper reviews recent experimental findings on how various factors influence current-driven magnetization switching in magnetic multilayer nanopillars, proposing a model that treats excitations as an effective magnetic temperature.
Contribution
It introduces a model that explains current-driven excitations as an effective magnetic temperature, accounting for multiple experimental observations.
Findings
Magnetic field and temperature significantly affect switching behavior.
Magnetic coupling and structural variations alter switching thresholds.
A current-dependent magnetic temperature model effectively describes the phenomena.
Abstract
We summarize our recent findings on how the current-driven magnetization switching in nanofabricated magnetic multilayers is affected by an applied magnetic field, changes of temperature, magnetic coupling between the ferromagnetic layers, variations in the multilayer structure, and the relative rotation of the layers' magnetizations. We show how these results can be interpreted with a model describing current-driven excitations as an effective current-dependent magnetic temperature.
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