Asymmetric magnetic bubbles expansion under in-plane field in Pt/Co/Pt : effect of interface engineering
| Autor: | Reinoud Lavrijsen, A. van den Brink, Henk J. M. Swagten, B Bert Koopmans, Marcel A. Verheijen, Yuxiang Yin, B Barcones, Rembert A. Duine, Dion M. F. Hartmann |
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| Přispěvatelé: | Physics of Nanostructures, Atomic scale processing, Eindhoven Hendrik Casimir institute, Theoretical Physics, Sub Cond-Matter Theory, Stat & Comp Phys |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
DYNAMICS
Materials science Interface engineering Field (physics) Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics Skyrmion Bubble FOS: Physical sciences Sputter deposition DRIVEN Condensed Matter Physics FILMS SKYRMIONS Electronic Optical and Magnetic Materials In plane DOMAIN-WALLS Creep Mesoscale and Nanoscale Physics (cond-mat.mes-hall) MULTILAYERS CREEP Layer (electronics) WEAK FERROMAGNETISM |
| Zdroj: | Physical Review B, 91. American Physical Society Physical review. B, Condensed matter and materials physics, 91(10). American Physical Society |
| ISSN: | 1098-0121 |
| Popis: | We analyse the impact of growth conditions on asymmetric magnetic bubble expansion under in-plane field in ultrathin Pt / Co / Pt films. Specifically, using sputter deposition we vary the Ar pressure during the growth of the top Pt layer. This induces a large change in the interfacial structure as evidenced by a factor three change in the effective perpendicular magnetic anisotropy. Strikingly, a discrepancy between the current theory for domain-wall propagation based on a simple domain-wall energy density and our experimental results is found. This calls for further theoretical development of domain-wall creep under in-plane fields and varying structural asymmetry. 16 pages, 3 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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