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Step-like magnetization in a spin-chain system: Ca3Co2O6

Yuri B. Kudasov
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Abstract

Due to a ferromagnetic in-chain coupling between Co$^{3+}$ ions at trigonal sites, chains Co$_2$O$_6$ are considered as large rigid spin moments. The antiferromagnetic Ising model on the triangular lattice is applied to describe an interchain ordering. An evolution of metastable states in a sweeping magnetic field is investigated by the single-flip technique. At the first approximation two steps in the magnetization curve and a plateau at 1/3 of the saturation magnetization are found. Four steps in magnetization are determined in high-order approximations in agreement with experimental results.

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Yuri B. Kudasov. 2005-11-03. Step-like magnetization in a spin-chain system: Ca3Co2O6. https://doi.org/10.1103/physrevlett.96.027212

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