On the magnetic structure of noncollinear γ‐Fe70Mn30
1988
The approximate d bands for a noncollinear γ‐FeMn alloy are formulated by using Deegan’s method and the formulas of Slater and Koster, and by taking into account the exchange interaction terms to produce the multi‐spin‐density‐wave state. The electronic energies for the noncollinear γ‐Fe70Mn30 alloy with the spin directions parallel to [100], [110], and [111] are calculated and the anisotropy energy is determined. It is seen that the state with the spin direction [111] becomes the lowest and the multi‐spin‐density‐wave state is realized in it. For other noncollinear γ‐FeMn alloys some discussions are given on the magnetic structure for them. Additionally, the anisotropy energies for noncollinear and collinear γ‐FeMn alloys are discussed in detail.
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