Noncollinear magnetism and enhancement of magnetocrystalline anisotropy at the Σ3(111) grain boundary in ferromagnetic Fe

Kohji Nakamura, Tomonori Ito, A. J. Freeman, Lieping Zhong, Juan Fernandez-De-Castro

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Abstract

The noncollinear magnetism and the enhancement of magnetocrystlline anisotropy (MCA) at the ∑(111) grain boundary (GB) in ferromagnetic Fe were analyzed. The first-principles full-potential linearized augmented plane-wave method, which included intra-atomic noncollinear magnetism, was used to analyze the enhancement of MCA and magnetic structures. It was observed that the GB enhanced the MCA by one order of magnitude from its bulk value and induced a pinning effect on the magnetization rotation or magnetic domain wall motion. It was also observed that by breaking the spatial translational symmetry in a crystalline solid, the GB exhibited a magnetic noncollineraity.

Original languageEnglish
Pages (from-to)4974-4976
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number24
DOIs
Publication statusPublished - Jun 14 2004

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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