Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice

Details Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice

2005-07-15

arxiv.org/abs/cond-mat/0507366v2

Condens. Matter Phys. 9 (2006) 179

Physics

Condensed Matter

Statistical Mechanics

9 pages, 6 figures

Scientific paper

The mixed spin-1/2 and spin-3/2 Ising model on the extended Kagom\'e lattice is solved by establishing a mapping correspondence with the eight-vertex model. Letting the parameter of uniaxial single-ion anisotropy tend to infinity, the model becomes exactly soluble as a free-fermion eight-vertex model. Under this restriction, the critical points are characterized by critical exponents from the standard Ising universality class. In a certain subspace of interaction parameters that corresponds to a coexistence surface between two ordered phases, the model becomes exactly soluble as a symmetric zero-field eight-vertex model. This surface is bounded by a line of bicritical points that have non-universal interaction-dependent critical exponents.

Affiliated with

Also associated with

No associations

Rating

Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice 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 Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-universal critical behaviour of a mixed-spin Ising model on the extended Kagome lattice will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-411383