Connections between spin-orbit torques and unidirectional magnetoresistance in ferromagnetic-metal–heavy-metal heterostructures

URN to cite this document:: urn:nbn:de:bvb:355-epub-536897
DOI to cite this document:: 10.5283/epub.53689

Chen, Lin

; Zollner, Klaus ; Parzefall, S. ; Schmitt, J. ; Kronseder, Matthias

; Fabian, Jaroslav

; Weiss, Dieter ; Back, Christian

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Date of publication of this fulltext: 07 Feb 2023 06:31

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Abstract

We investigate the connections between current-induced spin-orbit torques and unidirectional magnetoresistance (UMR) by performing second harmonic longitudinal resistance measurements on Co/Pt bilayer with magnetic-field mu 0H up to 10 T and temperature T down to 2 K. The fieldlike torque hFL changes sign with varying Co thickness tCo, which indicates that competing mechanisms, i.e., the spin ...