3d magnetism in ThCo2Sn2single crystals

Autor: Rosa, PFS, Garitezi, TM, Fisk, Z, Pagliuso, PG
Jazyk: angličtina
Rok vydání: 2014
Zdroj: Rosa, PFS; Garitezi, TM; Fisk, Z; & Pagliuso, PG. (2014). 3d magnetism in ThCo2Sn2single crystals. Journal of Physics: Conference Series, 592(1). doi: 10.1088/1742-6596/592/1/012053. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/0zf137wq
DOI: 10.1088/1742-6596/592/1/012053.
Popis: 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 ThCo2Sn2single 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 TN78 K when compared to TN65 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.
Databáze: OpenAIRE