Published Online: Jul 18, 2012
Page range: 92 - 97
DOI: https://doi.org/10.2478/s13536-012-0013-4
Keywords
© 2012 Wroclaw University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
We report on the investigation of the Ti2GeC properties by X-ray diffraction, magnetic and electrical resistivity measurements. Polycrystalline samples of Ti2GeC with nominal compositions were prepared by solid state reaction. X-ray powder patterns suggest that all peaks can be indexed with the hexagonal phase of Cr2AlC prototype. The temperature dependence of both electrical resistivity and magnetization indicate a bulk type-II superconductivity at 9.5 K. Magnetoresistive data suggest an upper critical field of Bc2 ∼ 8.1 T and coherence length ∼ 61 ° Å. Furthermore, the results highlight the highest critical temperature reported up to now for an H-phase.