Magnetic anisotropy of (110) Fe/Co superlattices

V. A. Vas'ko; Miyoung Kim; O. Mryasov; V. Sapozhnikov; M. K. Minor; A. J. Freeman; M. T. Kief

doi:10.1063/1.2337282

Magnetic anisotropy of (110) Fe/Co superlattices

V. A. Vas'ko^*, Miyoung Kim, O. Mryasov, V. Sapozhnikov, M. K. Minor, A. J. Freeman, M. T. Kief

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Magnetic anisotropy field of (110) Fe/Co superlattices was found to be as high as 1 T, with an in-plane easy axis. First principles calculations within the local spin density approximation show good agreement with the measurement. Lowering the symmetry by creating artificial superlattice structures leads to a significant increase in magnetic anisotropy energy as compared with any allotropic form of the elemental components and cubic FeCo. Large anisotropy is attributed to the cubic symmetry breaking due to the multilayer artificial atomic arrangement. Dependence of the anisotropy field on the superlattice period is supported by Monte Carlo film growth modeling.

Original language	English (US)
Article number	092502
Journal	Applied Physics Letters
Volume	89
Issue number	9
DOIs	https://doi.org/10.1063/1.2337282
State	Published - 2006

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Magnetic anisotropy of (110) Fe/Co superlattices",

abstract = "Magnetic anisotropy field of (110) Fe/Co superlattices was found to be as high as 1 T, with an in-plane easy axis. First principles calculations within the local spin density approximation show good agreement with the measurement. Lowering the symmetry by creating artificial superlattice structures leads to a significant increase in magnetic anisotropy energy as compared with any allotropic form of the elemental components and cubic FeCo. Large anisotropy is attributed to the cubic symmetry breaking due to the multilayer artificial atomic arrangement. Dependence of the anisotropy field on the superlattice period is supported by Monte Carlo film growth modeling.",

author = "Vas'ko, {V. A.} and Miyoung Kim and O. Mryasov and V. Sapozhnikov and Minor, {M. K.} and Freeman, {A. J.} and Kief, {M. T.}",

note = "Funding Information: This work was supported in part by KOSEF through CSCMR.",

year = "2006",

doi = "10.1063/1.2337282",

language = "English (US)",

volume = "89",

journal = "Applied Physics Letters",

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T1 - Magnetic anisotropy of (110) Fe/Co superlattices

AU - Vas'ko, V. A.

AU - Kim, Miyoung

AU - Mryasov, O.

AU - Sapozhnikov, V.

AU - Minor, M. K.

AU - Freeman, A. J.

AU - Kief, M. T.

N1 - Funding Information: This work was supported in part by KOSEF through CSCMR.

PY - 2006

Y1 - 2006

N2 - Magnetic anisotropy field of (110) Fe/Co superlattices was found to be as high as 1 T, with an in-plane easy axis. First principles calculations within the local spin density approximation show good agreement with the measurement. Lowering the symmetry by creating artificial superlattice structures leads to a significant increase in magnetic anisotropy energy as compared with any allotropic form of the elemental components and cubic FeCo. Large anisotropy is attributed to the cubic symmetry breaking due to the multilayer artificial atomic arrangement. Dependence of the anisotropy field on the superlattice period is supported by Monte Carlo film growth modeling.

AB - Magnetic anisotropy field of (110) Fe/Co superlattices was found to be as high as 1 T, with an in-plane easy axis. First principles calculations within the local spin density approximation show good agreement with the measurement. Lowering the symmetry by creating artificial superlattice structures leads to a significant increase in magnetic anisotropy energy as compared with any allotropic form of the elemental components and cubic FeCo. Large anisotropy is attributed to the cubic symmetry breaking due to the multilayer artificial atomic arrangement. Dependence of the anisotropy field on the superlattice period is supported by Monte Carlo film growth modeling.

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Magnetic anisotropy of (110) Fe/Co superlattices

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