Asymmetric magnetic bubbles expansion under in-plane field in Pt/Co/Pt : effect of interface engineering

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

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Uittreksel

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.
Originele taal-2Engels
Pagina's (van-tot)104414-
Aantal pagina's8
TijdschriftPhysical Review B
Volume91
DOI's
StatusGepubliceerd - 2015

Vingerafdruk

Magnetic bubbles
Domain walls
domain wall
bubbles
engineering
expansion
Sputter deposition
Magnetic anisotropy
Creep
flux density
asymmetry
anisotropy
propagation

Citeer dit

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title = "Asymmetric magnetic bubbles expansion under in-plane field in Pt/Co/Pt : effect of interface engineering",
abstract = "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.",
author = "R. Lavrijsen and D.M.F. Hartmann and {Brink, van den}, A. and Y. Yin and {Barcones Campo}, B. and R.A. Duine and M.A. Verheijen and H.J.M. Swagten and B. Koopmans",
year = "2015",
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Asymmetric magnetic bubbles expansion under in-plane field in Pt/Co/Pt : effect of interface engineering. / Lavrijsen, R.; Hartmann, D.M.F.; Brink, van den, A.; Yin, Y.; Barcones Campo, B.; Duine, R.A.; Verheijen, M.A.; Swagten, H.J.M.; Koopmans, B.

In: Physical Review B, Vol. 91, 2015, blz. 104414-.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Asymmetric magnetic bubbles expansion under in-plane field in Pt/Co/Pt : effect of interface engineering

AU - Lavrijsen, R.

AU - Hartmann, D.M.F.

AU - Brink, van den, A.

AU - Yin, Y.

AU - Barcones Campo, B.

AU - Duine, R.A.

AU - Verheijen, M.A.

AU - Swagten, H.J.M.

AU - Koopmans, B.

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevB.91.104414

DO - 10.1103/PhysRevB.91.104414

M3 - Article

VL - 91

SP - 104414-

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

ER -