Ising magnets with mobile defects Academic Article uri icon


  • Motivated by recent experiments on cuprates with low-dimensional magnetic interactions, a new class of two-dimensional Ising models with short-range interactions and mobile defects is introduced and studied. The non-magnetic defects form lines, which, as temperature increases, first meander and then become unstable. Using Monte Carlo simulations and analytical low-and high-temperature considerations, the instability of the defect stripes is monitored for various microscopic and thermodynamic quantities in detail for a minimal model, assuming some of the couplings to be indefinitely strong. The robustness of the findings against weakening the interactions is discussed as well.

published proceedings

  • The European Physical Journal B

author list (cited authors)

  • Selke, W., Pokrovsky, V. L., Bchner, B., & Kroll, T.

citation count

  • 18

publication date

  • November 2002