Independence of spin-orbit torques from the exchange bias direction in N i 81 F e 19 / IrMn bilayers - Université de Lorraine Access content directly
Journal Articles Physical Review B: Condensed Matter and Materials Physics (1998-2015) Year : 2018

Independence of spin-orbit torques from the exchange bias direction in N i 81 F e 19 / IrMn bilayers

Abstract

We investigated a possible correlation between spin Hall angles and exchange bias in Ni 81 Fe 19 /IrMn samples by performing spin-torque ferromagnetic resonance measurements. This correlation is probed by patterning of Ni 81 Fe 19 /IrMn bilayers in different relative orientations with respect to the exchange bias direction. The measured voltage spectra allow a quantitative determination of spin Hall angles, which are independent of the exchange bias orientation around 2.8 ± 0.3%.
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Dates and versions

hal-02086049 , version 2 (08-02-2019)
hal-02086049 , version 1 (01-04-2019)

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Hilal Saglam, J. Carlos Carlos Rojas-Sanchez, Sébastien Petit, Michel Hehn, Wei Zhang, et al.. Independence of spin-orbit torques from the exchange bias direction in N i 81 F e 19 / IrMn bilayers. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2018, 98 (9), pp.094407. ⟨10.1103/physrevb.98.094407⟩. ⟨hal-02086049v2⟩
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