Local formation of a Heusler structure in CoFe-Al alloys

S. Wurmehl; P.J. Jacobs; J.T. Kohlhepp; H.J.M. Swagten; B. Koopmans; S. Maat; M.J. Carey; J.R. Childress

doi:10.1063/1.3517490

Local formation of a Heusler structure in CoFe-Al alloys

S. Wurmehl, P.J. Jacobs, J.T. Kohlhepp, H.J.M. Swagten, B. Koopmans, S. Maat, M.J. Carey, J.R. Childress

Physics of Nanostructures

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Abstract

We systematically study the changes in the local atomic environments of Co in CoFe-Al alloys as a function of Al content by means of nuclear magnetic resonance. We find that a Co₂ FeAl Heusler type structure is formed on a local scale. The observed formation of a highly spin-polarized Heusler compound may explain the improved magnetotransport properties in CoFe-Al based current-perpendicular-to-the-plane spin-valves.

Original language	English
Article number	012506
Pages (from-to)	012506-1/3
Number of pages	3
Journal	Applied Physics Letters
Volume	98
Issue number	1
DOIs	https://doi.org/10.1063/1.3517490
Publication status	Published - 2011

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abstract = "We systematically study the changes in the local atomic environments of Co in CoFe-Al alloys as a function of Al content by means of nuclear magnetic resonance. We find that a Co2 FeAl Heusler type structure is formed on a local scale. The observed formation of a highly spin-polarized Heusler compound may explain the improved magnetotransport properties in CoFe-Al based current-perpendicular-to-the-plane spin-valves.",

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AU - Wurmehl, S.

AU - Jacobs, P.J.

AU - Kohlhepp, J.T.

AU - Swagten, H.J.M.

AU - Koopmans, B.

AU - Maat, S.

AU - Carey, M.J.

AU - Childress, J.R.

PY - 2011

Y1 - 2011

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AB - We systematically study the changes in the local atomic environments of Co in CoFe-Al alloys as a function of Al content by means of nuclear magnetic resonance. We find that a Co2 FeAl Heusler type structure is formed on a local scale. The observed formation of a highly spin-polarized Heusler compound may explain the improved magnetotransport properties in CoFe-Al based current-perpendicular-to-the-plane spin-valves.

U2 - 10.1063/1.3517490

DO - 10.1063/1.3517490

M3 - Article

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JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 1

M1 - 012506

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Local formation of a Heusler structure in CoFe-Al alloys

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