STASTICAL THERMODYNAMICS OF MIXTURES. II. CONVERGENCE OF THE QUASI- CHEMICAL METHOD FOR THE ISING SQUARE LATTICE

Journal Article · Sun Jan 01 00:00:00 EST 1961 · Journal of Chemical Physics (U.S.)

DOI:https://doi.org/10.1063/1.1701101· OSTI ID:4039984

Brush, S G

The quasi-chemical approximation of Guggenheim for calculating the thermodynamic properties of the Ising model is discussed. The Ising model is where a system of atoms is arranged on a lattice with simple nearestneighbor interactions. This model provides a more or less realistic description of many physical systems. For convenience a calculation is made of a mixture of two kinds of atoms, A and B, the forces between the atoms being such that a (nearest- neighbor) AB pair has an energy larger by an amount epsilon than the average of an AA or BB pair. The method was chosen because it provides a sequence of approximations which is believed to converge to the exact solution. (N.W.R.)

• Research Organization: Univ. of California, Livermore
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-023500
• OSTI ID: 4039984
• Report Number(s): UCRL-5842-T; 0021-9606
• Journal Information: Journal of Chemical Physics (U.S.), Vol. Vol: 34; Other Information: UCRL-5842-T. Orig. Receipt Date: 31-DEC-61
• Country of Publication: United States
• Language: English

Related Subjects

CHEMISTRY
ALLOYS
INTERACTIONS
ISING MODEL
LATTICES
MIXING
STATISTICS
THERMODYNAMICS