Extended Ising model. Academic Article uri icon


  • In this paper we describe a numerical method of solving the local-density mean-field equations of spatially frustrated lattice models. Using techniques of simulated annealing and simultaneous updating of collective modes, we have been able to locate the global minima of a function with many nearby local minima. This approach is applied to an isotropic frustrated lattice model with magnetic field in order to determine the global phase diagram. We also mention a related simulation technique which might be used to replace the traditional single-spin-flip Monte Carlo method. This appears to be a promising way of simulating periodic spatially frustrated lattice Hamiltonians. Finally, some consideration is given to the physical interpretation of a lattice model of microemulsions. 1988 The American Physical Society.

published proceedings

  • Phys Rev B Condens Matter

author list (cited authors)

  • Balbuena, P., & Dawson, K. A.

citation count

  • 4

complete list of authors

  • Balbuena, P||Dawson, KA

publication date

  • December 1988