The magnetic state of the ϵ phase of iron

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Abstract
A band calculation has been made for hexagonal close packed ( epsilon phase) iron in order to investigate whether a ferro- or antiferromagnetic state might be expected theoretically. For this purpose the Stoner criterion and a similar one for the occurrence of antiferromagnetism were applied and it was found that neither magnetic state would be predicted by these because of a low value for the density of states at the Fermi energy. Because of the width of the relevant dip in the density of states curve rigid band theory failed to explain the occurrence of antiferromagnetism in alloys of epsilon -Fe with Mn, Os and Ru as observed.

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