Anisotropic susceptibility of the geometrically frustrated spin-chain compound Ca3Co2O6

Details Anisotropic susceptibility of the geometrically frustrated spin-chain compound Ca3Co2O6 Anisotropic susceptibility of the geometrically frustrated spin-chain compound Ca3Co2O6

2007-01-10

arxiv.org/abs/cond-mat/0701192v1

J. Phys.: Condens. Matter 19, 145229 (2007).

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 5 figures

Scientific paper

10.1088/0953-8984/19/14/145229

Ca3Co2O6 is a system exhibiting a series of fascinating properties, including magnetization plateaus and remarkably slow dynamics at low-T. These properties are intimately related to the geometrical frustration, which results from a particular combination of features: (i) the chains are arranged on a triangular lattice; (ii) there is a large uniaxial anisotropy; (iii) the intrachain and interchain couplings are ferromagnetic and antiferromagnetic, respectively. The uniaxial anisotropy is thus an issue of crucial importance for the analysis of the physical properties of Ca3Co2O6. However, it turns out that no precise investigation of this magnetic anisotropy has been performed so far. On the basis of susceptibility data directly recorded on single crystals, the present study reports on quantitative information about the anisotropy of Ca3Co2O6.

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