Br6Ta2
MatHub2d-251-Br6Ta2
| Property |
Value |
| Space group |
(162, 'P-31m') |
| Crystal system |
hexagonal |
| Magnetic |
Yes |
| Band gap (PBE) (eV) |
0.17 |
| Free energy (eV) |
-35.769 |
| Free energy / atom (eV) |
-4.471 |
Lattice Parameters (basic)
| a, b, c (Å): | 6.160 | 6.160 | 30.000 |
| α, β, γ (°): | 90.000 | 90.000 | 120.000 |
Lattice Parameters (computed)
| a, b, c (Å): | 6.616 | 6.616 | 30.000 |
| α, β, γ (°): | 90.000 | 90.000 | 120.000 |
| Property |
Value |
| Band gap |
0.17 eV |
| E-fermi |
-2.877 eV |
| Vacuum level |
1.501 eV |
| VBM |
-2.972 eV |
| CBM |
-2.801 eV |
| Work function |
4.379 eV |
| Direct gap |
Yes |
| Property |
Value |
| Band gap |
0.17 eV |
| E-fermi |
-2.877 eV |
| Vacuum level |
1.501 eV |
| VBM |
-2.972 eV |
| CBM |
-2.801 eV |
| Work function |
4.379 eV |
| Cij (N/m) |
xx |
yy |
xy |
| xx |
13.919 |
0.694 |
0.000 |
| yy |
0.694 |
13.919 |
0.000 |
| xy |
0.000 |
0.000 |
6.612 |
| Phonon mode at Γ point (THz) |
| -3.039 |
| -3.039 |
| -0.003 |
| -0.003 |
| -0.001 |
| 1.683 |
| 1.683 |
| 2.081 |
| 2.310 |
| 2.515 |
| 2.515 |
| 2.549 |
| 3.932 |
| 3.932 |
| 4.365 |
| 4.566 |
| 4.566 |
| 4.716 |
| 4.755 |
| 4.755 |
| 5.044 |
| 5.068 |
| 5.068 |
| 5.882 |
| Property |
Value |
| from where |
c2db-1188 |