Site-specific magnetic anisotropies in R2Fe14B systems

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Abstract

The local magnetic anisotropy of R ions in R2Fe14B (R = Dy, Ho) systems is studied based on a microscopic effective spin model constructed from the information obtained by using first-principles calculations. By taking into account up to 6-th order crystal electric field parameters, the model satisfactory describes the observed magnetization curves and the temperature dependence of anisotropy constants. We found that at low temperatures, the noncollinear structure appears in the Ho2Fe14B system reflecting the local magnetic anisotropy.

Original languageEnglish
Article number162405
JournalApplied Physics Letters
Volume112
Issue number16
DOIs
Publication statusPublished - 2018 Apr 16

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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