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- W2471717870 abstract "We have investigated the structure, density of states, mechanical stability, elastic properties, and Debye temperature of tetragonal Nb2Al under high pressure using the generalized gradient approximation WC (GGA-WC) functional within density functional theory (DFT). Our obtained lattice constants were in good agreement with the reported experimental and theoretical data at zero pressure. The volume decreased with the increasing pressure. The effects of pressure on the electronic properties have been discussed. The elastic constants under pressure have been calculated, which all satisfied the stability criterion, meaning that tetragonal Nb2Al was mechanical stability from 0 to 100 GPa. Then, the mechanical properties including bulk modulus B, shear modulus G, Young’s modulus E, G/B, and Poisson’s ratio ν under pressure were determined using the Voigt-Reuss-Hill method. The G/B value suggested that tetragonal Nb2Al exhibited ductile behavior under pressure. Poisson’s ratio indicated that the interatomic forces in tetragonal Nb2Al were mainly central forces. Finally, the transverse, longitudinal, and average sound velocities and Debye temperature of tetragonal Nb2Al under pressure have been estimated." @default.
- W2471717870 created "2016-07-22" @default.
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- W2471717870 date "2016-02-18" @default.
- W2471717870 modified "2023-09-23" @default.
- W2471717870 title "Electronic and Mechanical Properties of Tetragonal Nb2Al Under High Pressure: First-Principles Calculations" @default.
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- W2471717870 doi "https://doi.org/10.1007/s13538-016-0405-8" @default.
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