Aufsatz in einer Fachzeitschrift
Tailoring Perpendicular Exchange Bias Coupling in Au/Co/NiO Systems by Ion Bombardment
Details zur Publikation
Autor(inn)en: | Kuświk, P.; Gaul, A.; Urbaniak, M.; Schmidt, M.; Aleksiejew, J.; Ehresmann, A.; Stobiecki, F. |
Publikationsjahr: | 2018 |
Zeitschrift: | Journal of Nanomaterials |
Seitenbereich: | 813 |
Jahrgang/Band : | 8 |
Heftnummer: | 10 |
ISSN: | 1687-4110 |
DOI-Link der Erstveröffentlichung: |
Zusammenfassung, Abstract
Here, we systematically investigated the influence of ion bombardment with different fluences on the strength and direction of the exchange bias coupling in Au/Co/NiO systems with perpendicular magnetic anisotropy of the Co layer. We found that the direction of the exchange bias coupling can be reversed as a result of ion bombardment performed in an external magnetic field which is in the opposite direction to the magnetic field applied during film deposition. Moreover, the strength of the exchange bias coupling can be tailored by varying the ion fluence. These results show behaviors similar to the results found for systems of ferromagnetic layers with in-plane anisotropy. Our experimental work, supported by a two-energy-level model, demonstrates that exchange bias coupling can be tuned in a layered system with perpendicular magnetic anisotropy using ion bombardment
Here, we systematically investigated the influence of ion bombardment with different fluences on the strength and direction of the exchange bias coupling in Au/Co/NiO systems with perpendicular magnetic anisotropy of the Co layer. We found that the direction of the exchange bias coupling can be reversed as a result of ion bombardment performed in an external magnetic field which is in the opposite direction to the magnetic field applied during film deposition. Moreover, the strength of the exchange bias coupling can be tailored by varying the ion fluence. These results show behaviors similar to the results found for systems of ferromagnetic layers with in-plane anisotropy. Our experimental work, supported by a two-energy-level model, demonstrates that exchange bias coupling can be tuned in a layered system with perpendicular magnetic anisotropy using ion bombardment
Schlagwörter
exchange bias, ion bombardment, perpendicular magnetic anisotropy
