Multiatom interactions in the fcc Ising binary alloy: low-temperature behavior and Monte Carlo simulations

An Ising model of an ordering binary alloy on the face-centered-cubic lattice, such as Cu--Au, was investigated. This model contains multiatom interactions on the triangles and tetrahedra of the lattice and the usual repulsions on the nearest-neighbor bonds. The model's ground states and its lo...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. B, Condensed matter Condensed matter, 1986-09, Vol.34 (5), p.3361-3370
Main Authors: STYER, D. F, PHANI, M. K, LEBOWITZ, J. L
Format: Article
Language:English
Subjects:
Classical spin models
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
General theory and models of magnetic ordering
Magnetic properties and materials
Materials science
Metals, semimetals and alloys
Other topics in magnetic properties and materials
Physics
Specific materials
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An Ising model of an ordering binary alloy on the face-centered-cubic lattice, such as Cu--Au, was investigated. This model contains multiatom interactions on the triangles and tetrahedra of the lattice and the usual repulsions on the nearest-neighbor bonds. The model's ground states and its low-temperature equilibrium states are examined. There are an infinite number of the former but only a few of the latter. Its phase diagram is also studied using Monte Carlo simulations, which confirm the broad conclusions of previous cluster-variation-method calculations, particularly near stoichiometry. Even small triangular interactions can introduce dramatic asymmetry into the phase diagram, making it similar to those observed in real alloys. 40 ref.--AA
ISSN:0163-1829
1095-3795
DOI:10.1103/PhysRevB.34.3361