Griffiths-like behavior and magnetocaloric properties of rare-earth silicide TbCoSi.

Novel rare-earth silicide, TbCoSicompound, crystallizes in LuCoGastructure, a distorted substitution variant of thestructure. The compound exhibits a complex magnetic state, with a ferromagnetic transition at 58 K, followed by successive antiferromagnetic transitions at 24 K and 8 K, respectively. Isothermal and magnetic hysteresis studies indicate the prominence of competing antiferro and ferromagnetic interactions in the compound.

Crystal Structure and Magnetism of Noncentrosymmetric EuPdSn.

The new intermetallic compound EuPdSn has been investigated. A single crystal was selected from the alloy and was analyzed by single-crystal X-ray diffraction, revealing that this compound possesses the noncentrosymmetric CaPdGe structure type being, so far, the only rare-earth-based representative. Bonding analysis, performed on the basis of DOS and (I)COHP, reveals the presence of strong covalent Sn-Pd bonds in addition to linear and equidistant Pd-Pd chains.

Crystal structure and physical properties of the two stannides EuPdSn and YbPdSn.

We report on synthesis, crystal structure and physical properties of the isotypic compounds YbPdSn and EuPdSn crystallizing in the MgCuAl-type structure. In both stannides a divalent state of respective rare earth element was found from analysis of the magnetic susceptibilities. Whereas in YbPdSn only weak paramagnetic behaviour is observed, in EuPdSn a long-range magnetic phase transition occurs at 12.