Time Resolved Measurements of the Switching Trajectory of Pt/Co Elements Induced by Spin-Orbit Torques

M. M. Decker; M. S. Wörnle; A. Meisinger; M. Vogel; H. S. Körner; G. Y. Shi; C. Song; M. Kronseder; C. H. Back

doi:10.1103/PhysRevLett.118.257201

Time Resolved Measurements of the Switching Trajectory of Pt/Co Elements Induced by Spin-Orbit Torques

M. M. Decker, M. S. Wörnle, A. Meisinger, M. Vogel, H. S. Körner, G. Y. Shi, C. Song, M. Kronseder, C. H. Back

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

We report the experimental observation of spin-orbit torque induced switching of perpendicularly magnetized Pt/Co elements in a time resolved stroboscopic experiment based on high resolution Kerr microscopy. Magnetization dynamics is induced by injecting subnanosecond current pulses into the bilayer while simultaneously applying static in-plane magnetic bias fields. Highly reproducible homogeneous switching on time scales of several tens of nanoseconds is observed. Our findings can be corroborated using micromagnetic modeling only when including a fieldlike torque term as well as the Dzyaloshinskii-Moriya interaction mediated by finite temperature.

Original language	English
Article number	257201
Journal	Physical Review Letters
Volume	118
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.118.257201
State	Published - 22 Jun 2017
Externally published	Yes

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10.1103/PhysRevLett.118.257201

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title = "Time Resolved Measurements of the Switching Trajectory of Pt/Co Elements Induced by Spin-Orbit Torques",

abstract = "We report the experimental observation of spin-orbit torque induced switching of perpendicularly magnetized Pt/Co elements in a time resolved stroboscopic experiment based on high resolution Kerr microscopy. Magnetization dynamics is induced by injecting subnanosecond current pulses into the bilayer while simultaneously applying static in-plane magnetic bias fields. Highly reproducible homogeneous switching on time scales of several tens of nanoseconds is observed. Our findings can be corroborated using micromagnetic modeling only when including a fieldlike torque term as well as the Dzyaloshinskii-Moriya interaction mediated by finite temperature.",

author = "Decker, {M. M.} and W{\"o}rnle, {M. S.} and A. Meisinger and M. Vogel and K{\"o}rner, {H. S.} and Shi, {G. Y.} and C. Song and M. Kronseder and Back, {C. H.}",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

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doi = "10.1103/PhysRevLett.118.257201",

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AU - Decker, M. M.

AU - Wörnle, M. S.

AU - Meisinger, A.

AU - Vogel, M.

AU - Körner, H. S.

AU - Shi, G. Y.

AU - Song, C.

AU - Kronseder, M.

AU - Back, C. H.

PY - 2017/6/22

Y1 - 2017/6/22

N2 - We report the experimental observation of spin-orbit torque induced switching of perpendicularly magnetized Pt/Co elements in a time resolved stroboscopic experiment based on high resolution Kerr microscopy. Magnetization dynamics is induced by injecting subnanosecond current pulses into the bilayer while simultaneously applying static in-plane magnetic bias fields. Highly reproducible homogeneous switching on time scales of several tens of nanoseconds is observed. Our findings can be corroborated using micromagnetic modeling only when including a fieldlike torque term as well as the Dzyaloshinskii-Moriya interaction mediated by finite temperature.

AB - We report the experimental observation of spin-orbit torque induced switching of perpendicularly magnetized Pt/Co elements in a time resolved stroboscopic experiment based on high resolution Kerr microscopy. Magnetization dynamics is induced by injecting subnanosecond current pulses into the bilayer while simultaneously applying static in-plane magnetic bias fields. Highly reproducible homogeneous switching on time scales of several tens of nanoseconds is observed. Our findings can be corroborated using micromagnetic modeling only when including a fieldlike torque term as well as the Dzyaloshinskii-Moriya interaction mediated by finite temperature.

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

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ER -

Time Resolved Measurements of the Switching Trajectory of Pt/Co Elements Induced by Spin-Orbit Torques

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