Abstract
The low-temperature physical properties of two intermetallics, Gd2CoGe6 and Tb2CoGe6, crystallizing with the orthorhombic Ce2CuGe6-type structure, have been studied by means of magnetization and electrical resistivity measurements. The magnetic behavior of these compounds involves the presence of magnetic moments on the rare earth and cobalt atoms sites. Both phases have been found to order antiferromagnetically below 20 and 22K, respectively. In each case, complex behavior of the magnetic susceptibility in the ordered state hints at some changes in the magnetic structure on decreasing the temperature. The two compounds exhibit metallic-type electrical conductivity.
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