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|Title:||3d magnetism in Thco2sn2 single crystals|
|Author:||Rosa, P. F. S.|
Garitezi, T. M.
Pagliuso, P. G.
|Abstract:||Intense efforts have been made in order to synthesize new tetragonal ternary intermetallic compounds with low-temperature ground states on the border of magnetism. Here we report the synthesis of ThCo2Sn2 single crystals, which crystallize in the tetragonal CaBe2Ge2-type structure, using the flux technique. Further investigation of the physical properties by magnetic susceptibility and pressure-dependent electrical resistivity measurements confirm the presence of antiferromagnetic ordering associated with the Co ions, but with a higher ordering temperature of T-N = 78 K when compared to T-N = 65 K of the polycrystalline counterpart. Our results show that both Cu-substitution and applied pressure up to 22 kbar are not able to induce superconductivity in this system. Nevertheless, our analyses point out to a putative quantum critical point at higher pressures|
Monocristais - Propriedades magnéticas
|Appears in Collections:||IFGW - Artigos e Outros Documentos|
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