Noncollinear magnetism, magnetocrystalline anisotropy, and spin-spiral structures in FeW (110)

Kohji Nakamura; Naoki Mizuno; Toru Akiyama; Tomonori Ito; A. J. Freeman

doi:10.1063/1.2713225

Noncollinear magnetism, magnetocrystalline anisotropy, and spin-spiral structures in FeW (110)

Kohji Nakamura^*, Naoki Mizuno, Toru Akiyama, Tomonori Ito, A. J. Freeman

^*Corresponding author for this work

Physics and Astronomy

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

15 Scopus citations

Abstract

Spin-spiral structures in the Fe monolayer on a W(110) substrate are determined by means of the first principles film full-potential linearized augmented plane-wave method including full-noncollinear magnetism. The results obtained predict that spin-spiral structures with a wave vector of 0.05 a-1 -0.1 a-1, where a is the lattice constant of bulk W, are energetically favorable over the ferromagnetic (FM) state. When compared with the calculated magnetocrystalline anisotropy (MCA) energy, however, the formation of the spin-spiral structures may be suppressed due to the large MCA that arises from the strong spin-orbit coupling at the FeW (110) interface, and so the system appears to be the FM state-as observed in experiments.

Original language	English (US)
Article number	09G521
Journal	Journal of Applied Physics
Volume	101
Issue number	9
DOIs	https://doi.org/10.1063/1.2713225
State	Published - May 21 2007

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "Spin-spiral structures in the Fe monolayer on a W(110) substrate are determined by means of the first principles film full-potential linearized augmented plane-wave method including full-noncollinear magnetism. The results obtained predict that spin-spiral structures with a wave vector of 0.05 a-1 -0.1 a-1, where a is the lattice constant of bulk W, are energetically favorable over the ferromagnetic (FM) state. When compared with the calculated magnetocrystalline anisotropy (MCA) energy, however, the formation of the spin-spiral structures may be suppressed due to the large MCA that arises from the strong spin-orbit coupling at the FeW (110) interface, and so the system appears to be the FM state-as observed in experiments.",

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AU - Nakamura, Kohji

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AU - Ito, Tomonori

AU - Freeman, A. J.

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AB - Spin-spiral structures in the Fe monolayer on a W(110) substrate are determined by means of the first principles film full-potential linearized augmented plane-wave method including full-noncollinear magnetism. The results obtained predict that spin-spiral structures with a wave vector of 0.05 a-1 -0.1 a-1, where a is the lattice constant of bulk W, are energetically favorable over the ferromagnetic (FM) state. When compared with the calculated magnetocrystalline anisotropy (MCA) energy, however, the formation of the spin-spiral structures may be suppressed due to the large MCA that arises from the strong spin-orbit coupling at the FeW (110) interface, and so the system appears to be the FM state-as observed in experiments.

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