Spin-current dissipation in a thin-film bilayer ferromagnet/antiferromagnet
| Autor: | V. Yu. Borynskyi, Alexandr Tovstolytkin, T. I. Polek, D. M. Polishchuk, A. M. Pogorily, Vladislav Korenivski, A. F. Kravets |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Permalloy Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Scattering Bilayer General Physics and Astronomy Dissipation Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences Ferromagnetic resonance Condensed Matter::Materials Science Ferromagnetism 0103 physical sciences Antiferromagnetism Condensed Matter::Strongly Correlated Electrons 010306 general physics Spin-½ |
| Zdroj: | Low Temperature Physics. 46:813-819 |
| ISSN: | 1090-6517 1063-777X |
| DOI: | 10.1063/10.0001547 |
| Popis: | Ferromagnetic resonance in multilayer metal nanostructures containing an antiferromagnetic layer of variable thickness is studied. The contribution to the linewidth of the ferromagnetic resonance that is caused by spin-pumping current dissipation in an exchange-coupled antiferromagnetic/ferromagnetic bilayer is determined. The dissipative processes that occur in the bulk of the antiferromagnet and at the interface between the antiferromagnet (Fe50Mn50) and the ferromagnet (permalloy, Ni81Fe19) are distinguished. The details of how the dissipation transforms when the antiferromagnet Neel vector deviates from the direction of the exchange-pinning field are determined. The proposed method is effective for studying spin scattering in individual layers and at interlayer interfaces in complex magnetic systems. |
| Databáze: | OpenAIRE |
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