The dual model for an Ising model with nearest and next-nearest neighbors Article

Strycharski, Adam, Koza, Zbigniew. (2014). The dual model for an Ising model with nearest and next-nearest neighbors . 46 295003.

cited authors

  • Strycharski, Adam; Koza, Zbigniew

fiu authors

abstract

  • We construct and analyse a dual model to the Ising model with the nearest and next-nearest neighbors on the rectangular lattice (NNNI model). The Hamiltonian of the dual model turns out to contain two- and four-spin interactions. The free fermion approximation suggests that an increase in the critical temperature of the dual model caused by the four-spin interactions is limited to a finite range.

publication date

  • April 25, 2014

keywords

  • cond-mat.stat-mech

start page

  • 295003

volume

  • 46