Exchange-bond structure and magnetization-step spectra of a diluted Heisenberg antiferromagnet on the square lattice: Lopsided two-exchange models

Yaacov Shapira; Valdir Bindilatti

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Exchange-bond structure and magnetization-step spectra of a diluted Heisenberg antiferromagnet on the square lattice: Lopsided two-exchange models

Yaacov Shapira·Valdir Bindilatti

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Abstract

Theoretycal results on the magnetization and susceptibility of a Heisenberg diluted antiferromagnet in the square lattice are given. The models considered have two exchange constants (J1-J2 and J1-J3) of which the second is much smaller than the first (lopsided models). Cluster statistics for clusters with up to 5 spins is given. A procedure to account for the contribution to the magnetization of clusters with more than 5 spins is described.

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Yaacov Shapira, Valdir Bindilatti. 2006-09-28. Exchange-bond structure and magnetization-step spectra of a diluted Heisenberg antiferromagnet on the square lattice: Lopsided two-exchange models. https://arxiv.org/abs/cond-mat/0609715

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