Details

Autor(en) / Beteiligte

• Lavrijsen, R.
• Hartmann, D. M. F.
• van den Brink, A.
• Yin, Y.
• Barcones, B.
• Duine, R. A.
• Verheijen, M. A.
• Swagten, H. J. M.
• Koopmans, B.

Titel

Asymmetric magnetic bubble expansion under in-plane field in Pt/Co/Pt: Effect of interface engineering

Ist Teil von

• Physical review. B, Condensed matter and materials physics, 2015-03, Vol.91 (10), Article 104414

Erscheinungsjahr

2015

Quelle

PROLA - Physical Review Online Archive

Beschreibungen/Notizen

• We analyze the impact of growth conditions on the asymmetric magnetic bubble expansion under an 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.