1301.4754 (P. N. Timonin)

Ferrimagnetism of dilute Ising antiferromagnets    [PDF]

P. N. Timonin

It is shown that nearest-neighbor antiferromagnetic interactions of identical Ising spins on imbalanced bipartite lattice and imbalanced bipartite hierarchical fractal result in ferrimagnetic transition instead of antiferromagnetic one. As evidenced by the existing low-field experiments, dilute Ising antiferromagnets may also experience such ferrimagnetic transitions due to the imbalanced nature of the magnetic percolation cluster when it coexists with the percolation cluster of vacancies.

View original: http://arxiv.org/abs/1301.4754