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Comparative study of Mo2Ga2C with superconducting MAX phase Mo2GaC: First-principles calculations |
M A Ali1, M R Khatun2, N Jahan1, M M Hossain1 |
1 Department of Physics, Chittagong University of Engineering and Technology, Chittagong 4349, Bangladesh; 2 Department of Physics, University of Rajshahi, Rajshahi 6205, Bangladesh |
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Abstract The structural, electronic, optical and thermodynamic properties of Mo2Ga2C are investigated using density functional theory (DFT) within the generalized gradient approximation (GGA). The optimized crystal structure is obtained and the lattice parameters are compared with available experimental data. The electronic density of states (DOS) is calculated and analyzed. The metallic behavior for the compound is confirmed and the value of DOS at Fermi level is 4.2 states per unit cell per eV. Technologically important optical parameters (e.g., dielectric function, refractive index, absorption coefficient, photo conductivity, reflectivity, and loss function) are calculated for the first time. The study of dielectric constant (ε1) indicates the Drude-like behavior. The absorption and conductivity spectra suggest that the compound is metallic. The reflectance spectrum shows that this compound has the potential to be used as a solar reflector. The thermodynamic properties such as the temperature and pressure dependent bulk modulus, Debye temperature, specific heats, and thermal expansion coefficient of Mo2Ga2C MAX phase are derived from the quasi-harmonic Debye model with phononic effect also for the first time. Analysis of Tc expression using available parameter values (DOS, Debye temperature, atomic mass, etc.) suggests that the compound is less likely to be superconductor.
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Received: 25 September 2016
Revised: 21 December 2016
Accepted manuscript online:
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PACS:
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31.15.A-
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(Ab initio calculations)
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71.15.Mb
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(Density functional theory, local density approximation, gradient and other corrections)
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71.20.-b
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(Electron density of states and band structure of crystalline solids)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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Corresponding Authors:
M A Ali
E-mail: ashrafphy31@cuet.ac.bd
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Cite this article:
M A Ali, M R Khatun, N Jahan, M M Hossain Comparative study of Mo2Ga2C with superconducting MAX phase Mo2GaC: First-principles calculations 2017 Chin. Phys. B 26 033102
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[1] |
Nowotny H 1970 Prog. Solid State Chem. 2 (ed. H Reiss) (New York, NY, USA: Pergamon Press)
|
[2] |
Barsoum M W 2000 Prog. Solid State Chem. 28 201
|
[3] |
Finkel P, Barsoum M W and El-Raghy T 2000 J. Appl. Phys. 87 1701
|
[4] |
Wang J and Zhou Y 2009 Annu. Rev. Mater. Res. 39 415
|
[5] |
Bouhemadou A, Khenata R, Kharoubi M and Medkour Y 2008 Solid State Commu. 146 175
|
[6] |
Nasir M T, Hadi M A, Naqib S H, Parvin F, Islam A K M A, Roknuzzaman M and Ali M S 2014 J. Mod. Phys. B 28 1550022
|
[7] |
Lapauw T, Lambrinou K, Cabioćh T, Halim J, Lu J, Pesach A, Rivin O, Ozeri O, Caspi E N, Hultman L, Eklund P, Rosén J, Barsoum M W and Vleugels J 2016 J. Eur. Ceram. Soc. 36 1847
|
[8] |
Horlait D, Grasso S, Chroneos A and Lee W E 2016 Mater. Res. Lett. 04 137
|
[9] |
Horlait D, Middleburgh S C, Chroneos A and Lee W E 2016 Sci. Rep. 6 18829
|
[10] |
Ali M A, Nasir M T, Khatun M R, Islam A K M A and Naqib S H 2016 Chin. Phys. B 25 103102
|
[11] |
Ali M A, Hossain M M, Jahan N, Naqib S H and Islam A K M A https://arxiv.org/ftp/arxiv/papers/1604/1604.06317.pdf
|
[12] |
Toth L E 1967 J. Less Common Metals 13 129
|
[13] |
Hu C, Lai C C, Tao Q, Lu J, Halim J, Sun, Zhang J, Yang J, Anason B, Wang J, Sakka Y, Hultman L, Eklund P, Rosen J and Barsoum M W 2015 Chem. Commun. 51 6553
|
[14] |
Lai C C, Meshkian R, Dahlqvist M, Lu J, Näslund L Å, Rivin O, Caspi E N, Ozeri O, Hultman L, Eklund P, Barsoum M W and Rosen J 2015 Acta Mater. 99 157
|
[15] |
Hadi M A 2016 Comp. Mater. Sci. 117 422
|
[16] |
Wang H C, Wang J N, Shi X F, Wang Y P and Tang B Y 2016 J. Mater. Sci. 51 8452
|
[17] |
Du Y L, Sun Z M, Hashimoto H and Tian W B 2009 Matr. Trans. 50 2173
|
[18] |
Segall M D, Lindan P J D, Probert M J, Pickard C J, Hasnip P J, Clark S J and Payne M C 2002 J. Phys. Condens. Matter 14 2717
|
[19] |
Payne M C, Teter M P, Allan D C, Arias T A and Joannopoulos J D 1992 Rev. Mod. Phys. 65 1045
|
[20] |
Perdew J P and Ernzerof K 1996 Phys. Rev. Lett. 77 3865
|
[21] |
Monkhorst H J and Pack J 1976 Phys. Rev. 13 5188
|
[22] |
Fischer T H, Almlöf J 1992 J. Phys. Chem. 96 9768
|
[23] |
Ali M A, Islam A K M A and Ali M S 2012 J. Sci. Res. 4 1
|
[24] |
McMillan W L 1968 Phys. Rev. 167 331
|
[25] |
Ali M A, Jahan N and Islam A K M A 2014 J. Sci. Res. 6 407
|
[26] |
Hadi M A, Ali M S, Naqib S H and Islam A K M A 2013 Int. J. Comp. Mat. Sci. Eng. 02 1350007
|
[27] |
Li S, Ahuja R, Barsoum M W, Jena P and Johansson B 2008 Appl. Phys. Lett. 92 221907
|
[28] |
Blanco M A, Francisco E, and Luana V 2004 Comput. Phys. Commun. 158 57
|
[29] |
Francisco E, Blanco M A and Sanjurjo G 2001 Phys. Rev. B 63 049107
|
[30] |
Du Y L, Sun Z M, Hashimoto H and Tian W B 2009 Matr. Trans. 50 2173
|
[31] |
Payne M C, Teter M P, Allan D C, Arias T A and Joannopoulos J D 1992 Rev. Mod. Phys. 65 1045
|
[32] |
Rayhan M A, Ali M A, Naqib S H and Islam A K M A 2015 J. Sci. Res. 7 53
|
[33] |
Debye P 1912 Ann. Phys. 39 789
|
[34] |
Petit A T and Dulong P L 1981 Ann. Chem. Phys. 10 395
|
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