Volume 259, Issue 11 2200195
Research Article

The Stability and Electronic and Thermal Transport Properties of New Tl-Based MAX-Phase Compound Ta2TlX (X: C or N)

Youcef Rached

Youcef Rached

Département des Sciences de la Matière, Faculté des Sciences et Technologie, Université de Tissemsilt, Tissemsilt, 38000 Algeria

Laboratoire d’Etudes Physique des Matériaux, Université des Sciences et de Technologies USTO-MB, El M’Naouar Oran, 31000 Algeria

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Ahmed Arab Ait Belkacem

Ahmed Arab Ait Belkacem

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

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Djamel Rached

Djamel Rached

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

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Habib Rached

Corresponding Author

Habib Rached

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

Department of Physics, Faculty of Exact Sciences and Informatics, Hassiba Benbouali University of Chlef, Ouled Fares, 02000 Chlef, Algeria

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Messaoud Caid

Messaoud Caid

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

Département des Sciences Exactes, École Normale Supérieure de Bou Saâda, Bou Saâda, 28001 M'sila, Algeria

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Mostefa Merabet

Mostefa Merabet

Département des Sciences de la Matière, Faculté des Sciences et Technologie, Université de Tissemsilt, Tissemsilt, 38000 Algeria

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

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Salaheddine Benalia

Salaheddine Benalia

Département des Sciences de la Matière, Faculté des Sciences et Technologie, Université de Tissemsilt, Tissemsilt, 38000 Algeria

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

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Lakhdar Djoudi

Lakhdar Djoudi

Département des Sciences de la Matière, Faculté des Sciences et Technologie, Université de Tissemsilt, Tissemsilt, 38000 Algeria

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

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Imad Eddine Rabah

Imad Eddine Rabah

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

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Mohamed Rabah

Mohamed Rabah

Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences, Djillali Liabès University of Sidi Bel-Abbès, Sidi Bel-Abbès, 22000 Algeria

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First published: 30 June 2022
Citations: 5

Abstract

Herein, a comprehensive computational investigation of the stability and mechanical, electronic, and thermal transport properties of two new Tl-based MAX-phase compounds Ta2TlC and Ta2TlN is presented. The negative values of the formation energy ensure the chemical stability of the materials. Moreover, the analysis of phonon dispersion and elastic constants shows that the compounds are dynamically and mechanically stable. From the electronic structures, the miss of bandgap at the Fermi level reveals the metallic nature of the compounds, and state densities indicate the difference between the conductivities of the two compounds. Furthermore, interestingly low thermal conductivities are obtained for both compounds. Finally, the ambition is that this report will inspire new theoretical and experimental studies on these compounds.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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