Quadratic short-range order corrections to the mean-field free energy

Details Quadratic short-range order corrections to the mean-field free energy Quadratic short-range order corrections to the mean-field free energy

1998-08-21

arxiv.org/abs/cond-mat/9808241v1

Physics

Condensed Matter

Statistical Mechanics

7 pages, no figures, IOP-style LaTeX, submitted to J. Phys. Condens. Matter (Letter to the Editor)

Scientific paper

10.1088/0953-8984/10/42/001

A method for calculating the short-range order part of the free energy of order-disorder systems is proposed. The method is based on the apllication of the cumulant expansion to the exact configurational entropy. Second-order correlation corrections to the mean-field approximation for the free energy are calculated for arbitrary thermodynamic phase and type of interactions. The resulting quadratic approximation for the correlation entropy leads to substantially better values of transition temperatures for the nearest-neighbour cubic Ising ferromagnets.

Affiliated with

Also associated with

No associations

Rating

Quadratic short-range order corrections to the mean-field free energy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quadratic short-range order corrections to the mean-field free energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quadratic short-range order corrections to the mean-field free energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-21331