Magnetic Damping Modulation in IrMn3/Ni80Fe20 via the Magnetic Spin Hall Effect
Physical Review Letters, cilt.124, sa.8, 2020 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 124 Sayı: 8
- Basım Tarihi: 2020
- Doi Numarası: 10.1103/physrevlett.124.087204
- Dergi Adı: Physical Review Letters
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Compendex, EMBASE, INSPEC, MEDLINE, zbMATH, DIALNET
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Boğaziçi Üniversitesi Adresli: Evet
Özet
Noncollinear antiferromagnets can have additional spin Hall effects due to the net chirality of their magnetic spin structure, which provides for more complex spin-transport phenomena compared to ordinary nonmagnetic materials. Here we investigated how ferromagnetic resonance of permalloy (Ni80Fe20) is modulated by spin Hall effects in adjacent epitaxial IrMn3 films. We observe a large dc modulation of the ferromagnetic resonance linewidth for currents applied along the [001] IrMn3 direction. This very strong angular dependence of spin-orbit torques from dc currents through the bilayers can be explained by the magnetic spin Hall effect where IrMn3 provides novel pathways for modulating magnetization dynamics electrically.