Research Article

Structural, Elastic, and Electronic Properties of Antiperovskite Chromium-Based Carbides ACCr3 (A = Al and Ga)

Table 2

Lattice parameter , magnetic moments per Cr atom , and the formation energies of ACCr3.

( ) (eV/atom) (eV/atom) ( /Cr) (eV/atom) ( /Cr)

CuCCr3 3.869 0.214 0.212 0.396 0.205 1.006
ZnCCr3 3.894 0.125 0.126 0.127 0.115 1.020
GaCCr3 3.891 −0.019 −0.019 0.001 −0.019 0.099
MoCCr3 3.898 0.105 0.105 0.053 0.105 0.240
AlCCr3 3.887 −0.0479 −0.0478 0.034 −0.0478 0.212
AgCCr3 3.936 0.286 0.292 0.544 0.268 1.649
CdCCr3 3.973 0.256 0.257 0.341 0.213 2.102
SnCCr3 3.981 0.082 0.0786 0.400 0.082 0.000
MgCCr3 3.952 0.220 0.219 0.173 0.195 1.824
InCCr3 3.999 0.187 0.189 0.406 0.188 0.006
YCCr3 4.088 0.269 0.268 0.611 0.270 0.000
LaCCr3 4.122 0.496 0.362 1.8101 0.497 0.002
CaCCr3 4.083 0.539 0.541 0.3311 0.539 0.001
SrCCr3 4.155 0.795 0.795 0.402 0.796 0.002
BaCCr3 4.246 1.166 0.998 1.957 1.166 0.002