| Autor: |
Magni, Alessandro, Basso, Vittorio, Sola, Alessandro, Soares, Gabriel, Meggiato, Nicola, Kuepferling, Michaela, Skowronski, Witold, Lazarski, Stanislaw, Grochot, Krzysztof, Khanjani, Mehran Vafaee, Langer, Juergen, Ocker, Berthold |
| Předmět: |
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| Zdroj: |
IEEE Transactions on Magnetics; Feb2022, Vol. 58 Issue 2, p1-5, 5p |
| Abstrakt: |
The spin Hall magnetoresistance (SMR) of Pt/FeCoB bilayers with in-plane magnetocrystalline anisotropy was analyzed with respect to a second-order effect in the sensing current, which acts, through the spin Hall effect in Pt, as a torque on the magnetization of the ferromagnetic (FM) layer and changes slightly its configuration. This leads to a small current-dependent shift of the SMR curves in field that allows, in structures with a multidomain state (e.g., Hall bars), the determination of the sign of the magnetic remanence. The SMR measurements were performed as a function of the Pt thickness and the spin Hall angle, and the diffusion length and the field-like and damping-like spin–orbit-torque (SOT) efficiency were determined. The results were compared with the values obtained from harmonic Hall voltage and SOT-FM resonance (FMR) measurements and show a good agreement. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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