Structural and magnetic properties of antiferromagnetic Ce${}_2$IrGa${}_{12}$

Abstract

We report a study of the structural and magnetic properties of single crystals of Ce${}_2$IrGa${}_{12}$. Ce${}_2$IrGa${}_{12}$ crystallizes in a layered tetragonal structure, and undergoes an antiferromagnetic transition below 3.1 K. We characterize the temperature-field phase diagrams of Ce${}_2$IrGa${}_{12}$ for fields both within the $ab$-plane and along the $c$-axis, where the presence of a field-induced magnetic phase is found for in-plane fields. The ordering temperature is moderately enhanced upon the application of pressures up to 2.3~GPa, suggesting that Ce${}_2$IrGa${}_{12}$ corresponds to the well localized region of the Doniach phase diagram.

9 pages, 10 figures

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