Calculated magnetic properties of binary alloys between Fe, Co, Ni, and Cu

Journal Article · Fri Jan 01 00:00:00 EST 1999 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.59.419· OSTI ID:289186

James, P ^[1]; Eriksson, O ^[1]; Johansson, B; Abrikosov, I A ^[1]

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1. Condensed Matter Theory Group, Physics Department, Uppsala University, S-75121 Uppsala (Sweden)

We present a detailed theoretical investigation of the magnetic properties of all the binary alloys between the 3d elements Fe, Co, Ni, and Cu, in the fcc, bcc, and hcp structures using the coherent-potential approximation in combination with a linear muffin-tin orbitals basis set. We consider random, ordered, and partially ordered alloys. Theory is shown to successfully reproduce the magnetic properties of these alloys, and allows an understanding of the physics of the formation of magnetic moments in these systems. We have investigated the correlation between magnetism and local chemical and magnetical surrounding, and find that Fe and Ni display rather different behavior. Our study shows that there is an alloy-induced high-spin{endash}low-spin magnetic phase transition in all Fe-based fcc and hcp alloys. The limitations of a collinear spin model and the Weiss model for explaining the Invar effect are discussed on basis of noncollinear calculations for fcc Fe. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 289186
• Journal Information: Physical Review, B: Condensed Matter, Vol. 59, Issue 1; Other Information: PBD: Jan 1999
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MAGNETIC PROPERTIES
IRON ALLOYS
COBALT ALLOYS
NICKEL ALLOYS
COPPER ALLOYS
FCC LATTICES
BCC LATTICES
MAGNETIC MOMENTS
PHASE TRANSFORMATIONS
MAGNETISM
SPIN
MUFFIN-TIN POTENTIAL
FERROMAGNETIC MATERIALS
FERROMAGNETISM