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Magnetism in metastable bcc and fcc iron-copper alloys : 38th Annual Conference on Magnetism and Magnetic Materials (1994)

Serena, P. A. ; García, N.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 75 (1994), S. 6580-6582

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: We present linearized augmented plane-wave calculations for FeCu fcc and bcc metastable phases using the local density approximation. Curves for the density of states (without including the spin-polarization effects) at several Fe concentrations are given, noticing that the density of states at the Fermi level for determinated fcc alloys suffers significant large increases in relation to the fcc Fe. This fact provides an explanation to the magnetic character found in some fcc FeCu alloys. The magnetization is calculated at different compositions by applying the Stoner criteria, assuming a simple behavior for the magnetic exchange integral, and including the effect of randomness in a simple way. We find that the magnetic moment per Fe atom is similar to that of bcc Fe for some fcc FeCu alloys.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.356901

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