Superconductivity at 9.5 K in the Ti2GeC compound

A. Bortolozo; O. Sant’Anna; C. Santos; A. Machado

doi:10.2478/s13536-012-0013-4

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Superconductivity at 9.5 K in the Ti2GeC compound

Materials Science-Poland

Volume 30 (2012): Issue 2 (June 2012)

By: A. Bortolozo, O. Sant’Anna, C. Santos and A. Machado

Open Access

|Jul 2012

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.

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Articles in this issue

DOI: https://doi.org/10.2478/s13536-012-0013-4 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331

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Language: English

Page range: 92 - 97

Published on: Jul 18, 2012

Published by: Wroclaw University of Science and Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

carbide,

Related subjects:

Materials sciences, other,

Nanomaterials,

Functional and smart materials,

Materials characterization and properties

© 2012 A. Bortolozo, O. Sant’Anna, C. Santos, A. Machado, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 30 (2012): Issue 2 (June 2012)