Reduced domain wall pinning in ultrathin Pt/ Co100-x B x /Pt with perpendicular magnetic anisotropy

R. Lavrijsen; G. Malinowski; J.H. Franken; J.T. Kohlhepp; H.J.M. Swagten; B. Koopmans; M. Czapkiewicz; T. Stobiecki

doi:10.1063/1.3280373

Reduced domain wall pinning in ultrathin Pt/ Co_100-x B _x /Pt with perpendicular magnetic anisotropy

R. Lavrijsen, G. Malinowski, J.H. Franken, J.T. Kohlhepp, H.J.M. Swagten, B. Koopmans, M. Czapkiewicz, T. Stobiecki

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Abstract

We have studied the magnetization reversal process in perpendicularly magnetized ultrathin Pt/ Co_100-x B_x /Pt films by means of magneto-optical magnetometry and microscopy. The addition of boron enhances the effective Barkhausen volume indicating a decrease in domain-wall pinning site density and/or strength. This potentially reduces the field and critical current-density for domain-wall depinning/motion, indicating that perpendicularly magnetized Pt/ Co_100-x B_x /Pt could be an interesting candidate for domain-wall motion studies and applications.

Original language	English
Article number	022501
Pages (from-to)	022501-1/3
Number of pages	3
Journal	Applied Physics Letters
Volume	96
Issue number	2
DOIs	https://doi.org/10.1063/1.3280373
Publication status	Published - 2010

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title = "Reduced domain wall pinning in ultrathin Pt/ Co100-x B x /Pt with perpendicular magnetic anisotropy",

abstract = "We have studied the magnetization reversal process in perpendicularly magnetized ultrathin Pt/ Co100-x Bx /Pt films by means of magneto-optical magnetometry and microscopy. The addition of boron enhances the effective Barkhausen volume indicating a decrease in domain-wall pinning site density and/or strength. This potentially reduces the field and critical current-density for domain-wall depinning/motion, indicating that perpendicularly magnetized Pt/ Co100-x Bx /Pt could be an interesting candidate for domain-wall motion studies and applications.",

author = "R. Lavrijsen and G. Malinowski and J.H. Franken and J.T. Kohlhepp and H.J.M. Swagten and B. Koopmans and M. Czapkiewicz and T. Stobiecki",

year = "2010",

doi = "10.1063/1.3280373",

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T1 - Reduced domain wall pinning in ultrathin Pt/ Co100-x B x /Pt with perpendicular magnetic anisotropy

AU - Lavrijsen, R.

AU - Malinowski, G.

AU - Franken, J.H.

AU - Kohlhepp, J.T.

AU - Swagten, H.J.M.

AU - Koopmans, B.

AU - Czapkiewicz, M.

AU - Stobiecki, T.

PY - 2010

Y1 - 2010

N2 - We have studied the magnetization reversal process in perpendicularly magnetized ultrathin Pt/ Co100-x Bx /Pt films by means of magneto-optical magnetometry and microscopy. The addition of boron enhances the effective Barkhausen volume indicating a decrease in domain-wall pinning site density and/or strength. This potentially reduces the field and critical current-density for domain-wall depinning/motion, indicating that perpendicularly magnetized Pt/ Co100-x Bx /Pt could be an interesting candidate for domain-wall motion studies and applications.

AB - We have studied the magnetization reversal process in perpendicularly magnetized ultrathin Pt/ Co100-x Bx /Pt films by means of magneto-optical magnetometry and microscopy. The addition of boron enhances the effective Barkhausen volume indicating a decrease in domain-wall pinning site density and/or strength. This potentially reduces the field and critical current-density for domain-wall depinning/motion, indicating that perpendicularly magnetized Pt/ Co100-x Bx /Pt could be an interesting candidate for domain-wall motion studies and applications.

U2 - 10.1063/1.3280373

DO - 10.1063/1.3280373

M3 - Article

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SP - 022501-1/3

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

M1 - 022501

ER -

Reduced domain wall pinning in ultrathin Pt/ Co100-x B x /Pt with perpendicular magnetic anisotropy

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Reduced domain wall pinning in ultrathin Pt/ Co_100-x B _x /Pt with perpendicular magnetic anisotropy