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Type: Artigo de evento
Title: 3d Magnetism In Thco2sn2 Single Crystals
Author: Rosa
P. F. S.; Garitezi
T. M.; Fisk
Z.; 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.
Subject: Phosphides Caco2p2
Country: BRISTOL
Citation: 3d Magnetism In Thco2sn2 Single Crystals. Iop Publishing Ltd, v. 592, p. 2015.
Rights: aberto
Identifier DOI: 10.1088/1742-6596/592/1/012053
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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