Crystal structure prediction of ReN2 under high pressure
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Abstract
Three ReN2 phases (Pbcn, C2/m and P4/mbm) are searched to be stable under different pressures by the swarm-intelligence-based CALYPSO method. Pressure-induced phase transitions from Pbcn phase to C2/m phase at 68.5 GPa and C2/m phase to P4/mbm phase at 138.8 GPa are firstly observed. The calculated results of density of state show all the three phases are metallic conductor. And elastic constant calculations confirm their mechanical stabilities. The high bulk and shear moduli of C2/m and P4/mbm phases indicate their high hardness. The total and partial electron densities of states and electron localization functions indicate that the covalent bonding of Re–N in ReN2 makes great contributions to the structural stability and high hardness.
Keywords
ReN2 Phase transition High pressure Structural propertiesPACS Nos
62.50.+p 64.70.Kb 03.75.HhNotes
Acknowledgements
This project was supported by the National Natural Science Foundation of China (Grant Nos. 11404099 and 51571086) and Henan Joint International Research Laboratory for High Performance Metallic Material and Their Numerical Simulation.
References
- [1]C M Sung and M Sung Mater. Chem. Phys.43 1 (1996)ADSCrossRefGoogle Scholar
- [2]J Haines, J M Leger and G Bocquillon Annu. Rev. Mater. Res.31 1 (2001)ADSCrossRefGoogle Scholar
- [3]E J Zhao, J A Meng, Y M Ma and Z J Wu Phys. Chem. Chem. Phys.12 13158 (2010)CrossRefGoogle Scholar
- [4]M L S Arockiasamy, M Sundareswari and M Rajagopalan Indian J. Phys. 90 149 (2016)ADSCrossRefGoogle Scholar
- [5]S Kodambaka, S V Khare, V Petrova, D D Johnson, I Petrovl and J E Greene Phys. Rev. B67 035409 (2003)ADSCrossRefGoogle Scholar
- [6]S H Jhi, S G Louie, M L Cohen and J M Morris Phys. Rev. Lett. 87 075503 (2001)ADSCrossRefGoogle Scholar
- [7]B Indrajit Sharma, J Maibam, R S Paul, R K Thapa and R K Brojen Singh Indian J. Phys. 84 671 (2010)Google Scholar
- [8]S H Jhi, S G Louie, M L Cohen and J Ihm Phys. Rev. Lett. 86 3348 (2001)ADSCrossRefGoogle Scholar
- [9]S Kodambaka, S V Khare, I Petrov and J E Greene Surf. Sci. Rep. 60 55 (2006)ADSCrossRefGoogle Scholar
- [10]A Y Liu and M L Cohen Science245 841 (1989)ADSCrossRefGoogle Scholar
- [11]Y C Wang, T K Yao, H Li, J Lian, J H Li, Z P Li, J W Zhang and H Y Gou Comp. Mater. Sci. 56 116 (2012)CrossRefGoogle Scholar
- [12]H R Lei, J Zhu, Y J Hao, L Zhang, B R Yu and L Q Chen Physica B458 124 (2015)ADSCrossRefGoogle Scholar
- [13]A T Asvini meenaatci, R Rajeswarapalanichamy and K Iyakutti. Physica B406 2610 (2011)ADSCrossRefGoogle Scholar
- [14]Y L Li and Z Zeng Solid State Commun. 149 1591 (2009)ADSCrossRefGoogle Scholar
- [15]R Rajeswarapalanichamy, M Kavitha, G Sudha Priyanga and K Iyakutti J. Phys. Chem. Solids78 118 (2015)ADSCrossRefGoogle Scholar
- [16]W H Li J. Alloys Compd. 537 216 (2012)CrossRefGoogle Scholar
- [17]Y W Li and Y M Ma Solid State Commun. 150 759 (2010)ADSCrossRefGoogle Scholar
- [18]P F Weck, E Kim and K R Czerwinski Dalton Trans.40 6738 (2011)CrossRefGoogle Scholar
- [19]Y C Liang, C Li, W L Guo and W Q Zhang Phys. Rev. B79 024111 (2009)ADSCrossRefGoogle Scholar
- [20]E J Zhao and Z J Wu Comp. Mater. Sci.44 531 (2008)CrossRefGoogle Scholar
- [21]Y L Li and Z Zeng Chem. Phys. Lett.474 93 (2009)ADSCrossRefGoogle Scholar
- [22]X P Du, Y X Wang and V C Lo Phys. Lett.374 2569 (2010)CrossRefGoogle Scholar
- [23]Y C Wang, J Lv, L Zhu and Y M Ma Phys. Rev. B82 094116 (2010)ADSCrossRefGoogle Scholar
- [24]Y C Wang, J Lv, L Zhu and Y M Ma Comput. Phys. Commun. 183 2063 (2012)ADSCrossRefGoogle Scholar
- [25]P Hohenberg and W Kohn Phys. Rev.136 B864 (1964)ADSCrossRefGoogle Scholar
- [26]W Kohn and L J Sham Phys. Rev.140 A1133 (1965)ADSCrossRefGoogle Scholar
- [27]G Kresse and J Furthmuller Phys. Rev. B54 11169 (1996)ADSCrossRefGoogle Scholar
- [28]G Kresse and J Hafner Phys Rev. B47 558 (1993)ADSCrossRefGoogle Scholar
- [29]G Kresse and D Joubert Phys. Rev. B59 1758 (1999)ADSCrossRefGoogle Scholar
- [30]J P Perdew, J A Chevary, S H Vosko, K A Jackson, M R Pederson, D J Singh and C Fiolhais Phys. Rev. B46 6671 (1992)ADSCrossRefGoogle Scholar
- [31]J P Perdew, S Burke and M Ernzerhof Phys. Rev. Lett. 77 3865 (1996)ADSCrossRefGoogle Scholar
- [32]Z J Wu, E J Zhao, H P Xiang, X F Hao, X J Liu and J Meng Phys. Rev. B76 054115 (2007)ADSCrossRefGoogle Scholar
- [33]H J Mcskimin, P Andreatch and P Glynn J. Appl. Phys.43 985 (1972)ADSCrossRefGoogle Scholar
- [34]R Hill Proc. Phys. Soc. Lond.65 350 (1952)ADSCrossRefGoogle Scholar
- [35]X Q Chen, H Y Niu, D Z Li and Y Y Li Intermetalics19 1275 (2011)CrossRefGoogle Scholar
- [36]Y J Tian, B Xu and Z S Zhao Int. J. Refract. Met. Hard Mater.33 93 (2012)CrossRefGoogle Scholar