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

Decker, M. M. and Woernle, M. S. and Meisinger, A. and Vogel, M. and Koerner, H. S. and Shi, G. Y. and Song, C. and Kronseder, M. and Back, C. H. (2017) Time Resolved Measurements of the Switching Trajectory of Pt/Co Elements Induced by Spin-Orbit Torques. PHYSICAL REVIEW LETTERS, 118 (25): 257201. ISSN 0031-9007, 1079-7114

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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.

Item Type: Article
Uncontrolled Keywords: DOMAIN-WALLS; MAGNETIZATION; DYNAMICS; MAGNITUDE;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back
Depositing User: Dr. Gernot Deinzer
Date Deposited: 14 Dec 2018 13:10
Last Modified: 27 Feb 2019 11:24
URI: https://pred.uni-regensburg.de/id/eprint/682

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