Bi2Br6
MatHub2d-107-Bi2Br6
| Property |
Value |
| Space group |
(162, 'P-31m') |
| Crystal system |
hexagonal |
| Magnetic |
No |
| Band gap (PBE) (eV) |
2.99 |
| Free energy (eV) |
-23.769 |
| Free energy / atom (eV) |
-2.971 |
Lattice Parameters (basic)
| a, b, c (Å): | 7.399 | 7.399 | 30.000 |
| α, β, γ (°): | 90.000 | 90.000 | 120.000 |
Lattice Parameters (computed)
| a, b, c (Å): | 7.399 | 7.399 | 30.000 |
| α, β, γ (°): | 90.000 | 90.000 | 120.000 |
| Property |
Value |
| Band gap |
2.99 eV |
| E-fermi |
-5.494 eV |
| Vacuum level |
1.464 eV |
| VBM |
-5.805 eV |
| CBM |
-2.816 eV |
| Work function |
6.958 eV |
| Direct gap |
No |
| Property |
Value |
| Band gap |
2.99 eV |
| E-fermi |
-5.494 eV |
| Vacuum level |
1.464 eV |
| VBM |
-5.805 eV |
| CBM |
-2.816 eV |
| Work function |
6.958 eV |
| Cij (N/m) |
xx |
yy |
xy |
| xx |
11.028 |
5.012 |
0.000 |
| yy |
5.012 |
11.028 |
-0.000 |
| xy |
0.000 |
-0.000 |
3.008 |
| Phonon mode at Γ point (THz) |
| -0.010 |
| -0.004 |
| -0.004 |
| 0.897 |
| 0.939 |
| 0.939 |
| 1.162 |
| 1.353 |
| 1.513 |
| 1.513 |
| 1.797 |
| 1.977 |
| 1.977 |
| 2.640 |
| 2.640 |
| 3.468 |
| 3.468 |
| 3.764 |
| 3.764 |
| 4.182 |
| 4.242 |
| 4.242 |
| 4.301 |
| 5.199 |
| Carrier type |
C2D (N/m) |
Edef (eV) |
μ (cm2V-1s-1) |
| x |
y |
x |
y |
x |
y |
| hole |
12.03 |
12.29 |
-1.62 |
-2.01 |
-1.83 |
-1.21 |
| electron |
-3.75 |
-3.75 |
20.24 |
20.60 |
| Property |
Value |
| from where |
c2db-1108 |