<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></abstract>

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.

Superconductivity at 9.5 K in the Ti2GeC compound

Departamento de Engenharia de Materiais, Escola de Engenharia de Lorena — USP, P.O. BOX 116, Lorena - SP, 12600-970, Brazil

Universidade Federal de Itajubá, Campus de Itabira, 35903-087, Itabira - MG, Brazil

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Superconductivity at 9.5 K in the Ti2GeC compound"}

We report on the investigation of the Ti2GeC properties by X-ray diffraction, magnetic and electrical resistivity measurements. Polycrystalline samples of...

Superconductivity at 9.5 K in the Ti2GeC compound

Publié en ligne: 18 juil. 2012

Pages: 92 - 97

DOI: https://doi.org/10.2478/s13536-012-0013-4

Mots clés
superconductivity, carbide, nanolaminates, MAX phase

© 2012 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Superconductivity at 9.5 K in the Ti2GeC compound

Publié en ligne: 18 juil. 2012

Pages: 92 - 97

DOI: https://doi.org/10.2478/s13536-012-0013-4

Mots cléssuperconductivity, carbide, nanolaminates, MAX phase

© 2012 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
superconductivity, carbide, nanolaminates, MAX phase