| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gambardella, Pietro
ETH Zurich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2022Asynchronous current-induced switching of rare-earth and transition-metal sublattices in ferrimagnetic alloyscitations
- 2022Asynchronous current-induced switching of rare-earth and transition-metal sublattices in ferrimagnetic alloyscitations
- 2019High-speed domain wall racetracks in a magnetic insulatorcitations
- 2019Current-induced switching of YIG/Pt bilayers with in-plane magnetization due to Oersted fieldscitations
- 2018Chiral anisotropic magnetoresistance of ferromagnetic helicescitations
- 2017Co-sputtered PtMnSb thin films and PtMnSb/Pt bilayers for spin–orbit torque investigationscitations
- 2017Magnetic dopants on the surface of 2D heavy metal alloys and topological insulators
- 2017Co-sputtered PtMnSb thin films and PtMnSb/Pt bilayers for spin-orbit torque investigationscitations
- 2015Magnetoresistance of heavy and light metal/ferromagnet bilayerscitations
- 2011Perpendicular switching of a single ferromagnetic layer induced by in-plane current injectioncitations
- 2011Perpendicular switching of a single ferromagnetic layer induced by in-plane current injectioncitations
- 2010Current-driven spin torque induced by the Rashba effect in a ferromagnetic metal layercitations
- 2009Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdiskscitations
- 2007Surface characterization of Mn(x)Ge(1−x) and Cr(y)Mn(x)Ge(1−x−y) dilute magnetic semiconductorscitations
Places of action
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article
Magnetoresistance of heavy and light metal/ferromagnet bilayers
Abstract
<jats:p>We studied the magnetoresistance of normal metal (NM)/ferromagnet (FM) bilayers in the linear and nonlinear (current-dependent) regimes and compared it with the amplitude of the spin-orbit torques and thermally induced electric fields. Our experiments reveal that the magnetoresistance of the heavy NM/Co bilayers (NM = Ta, W, and Pt) is phenomenologically similar to the spin Hall magnetoresistance (SMR) of YIG/Pt, but has a much larger anisotropy of the order of 0.5%, which increases with the atomic number of the NM. This SMR-like behavior is absent in light NM/Co bilayers (NM = Ti and Cu), which present the standard anisotropic magnetoresistance expected from polycrystalline FM layers. In the Ta, W, and Pt/Co bilayers, we find an additional magnetoresistance directly proportional to the current and to the transverse component of the magnetization. This so-called unidirectional SMR, of the order of 0.005%, is largest in W and correlates with the amplitude of the antidamping spin-orbit torque. The unidirectional SMR is below the accuracy of our measurements in YIG/Pt.</jats:p>