Role of Three-Body Potentials in Disordered Alloys. II : Ternary Alloys

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概要

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• The formulation of the statistical mechanics of disordered ternary alloys with arbitrary composition and arbitrary range of two- and three-body potentials is given. The high temperature expansion is worked out explicitly for the two- and three-site static correlation functions up to the term linear in (kT)^<-1>. As in the corresponding case for binaries, within the linear approximation, the presence of irreducible three-body potentials causes the two-site correlation function results to depend upon an effective, composition-dependent, pair-wise interaction. However, the dependence of the three-site correlation function upon the three-body potentials cannot be represented, even within the linear approximation, by an appropriately renormalized, composition-dependent, pair-wise potential, but is rather an explicit function of the three-body potentials. Consequently, an experimental measurement of the triplet correlation would, under suitable conditions, provide direct information about the three-body potentials.

• 理論物理学刊行会の論文
• 1972-02-25

著者

• Tahir-kheli Raza

  Department Of Physics Temple University

• TAGGART G.

  Department of Physics, Temple University

• Taggart G.

  Department Of Physics Temple University : Department Of Physics Virginia Commonwealth University Ric

• Taggart G.

  Department Of Physics Temple University

関連論文

• Effective Pairwise Potentials in Copper-Gold Alloys
• Uniform Susceptibility of an Anisotropic Binary Paramagnet
• Role of Three-Body Potentials in Disordered Alloys. II : Ternary Alloys
• Role of Three-Body Potentials in Disordered Alloys. III : Quasi-Binary Alloys
• Role of Three-Body Potentials in Disordered Alloys. I : Binary Alloys
• Theory of Disordered Four-Component Systems
• Higher Random Phase Approximations for the Ising Model. I : The 2nd-RPA

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