Structure info | |
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Layer group | cm2e |
Layer group number | 36 |
Structure origin | Wang23 |
Stability | |
---|---|
Energy above convex hull [eV/atom] | 0.083 |
Heat of formation [eV/atom] | 0.029 |
Dynamically stable | No |
Basic properties | |
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Magnetic | No |
Band gap (PBE) [eV] | 0.528 |
Symmetries | |
---|---|
2D Bravais type | Centered rectangular (oc) |
Layer group number | 36 |
Layer group | cm2e |
Space group number (bulk in AA-stacking) | 39 |
Space group (bulk in AA-stacking) | Aem2 |
Point group | mm2 |
Inversion symmetry | No |
Structure data | |
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Formula | Ag8Se12 |
Stoichiometry | A2B3 |
Number of atoms | 20 |
Unit cell area [Å2] | 65.874 |
Thickness [Å] | 4.643 |
Ag8Se12 (4Ag2Se3-1) | |
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Heat of formation [eV/atom] | 0.03 |
Energy above convex hull [eV/atom] | 0.08 |
Monolayers from C2DB | |
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Se2Ag4 (2SeAg2-1) | -0.09 eV/atom |
Se8Ag16 (8SeAg2-1) | -0.07 eV/atom |
Ag4Se4 (4AgSe-1) | -0.02 eV/atom |
Ag2Se2 (2AgSe-1) | 0.02 eV/atom |
Ag8Se12, (4Ag2Se3-1) | 0.03 eV/atom |
Ag2Se4 (2AgSe2-1) | 0.05 eV/atom |
Ag2Se2 (2AgSe-2) | 0.05 eV/atom |
Ag2Se2 (2AgSe-3) | 0.06 eV/atom |
AgSe2 (1AgSe2-1) | 0.11 eV/atom |
SeAg2 (1SeAg2-1) | 0.15 eV/atom |
Ag2Se2 (2AgSe-4) | 0.15 eV/atom |
Ag2Se2 (2AgSe-5) | 0.18 eV/atom |
Ag2Se4 (2AgSe2-2) | 0.19 eV/atom |
Se2 (2Se-1) | 0.21 eV/atom |
AgSe2 (1AgSe2-2) | 0.22 eV/atom |
Ag2Se2 (2AgSe-6) | 0.27 eV/atom |
Se2 (2Se-2) | 0.29 eV/atom |
Ag2 (2Ag-1) | 0.31 eV/atom |
AgSe2 (1AgSe2-3) | 0.32 eV/atom |
Minimum eigenvalue of Hessian [eV/Ų] | -0.04 |
Cij (N/m) | xx | yy | xy |
xx | 46.48 | 5.87 | 0.00 |
yy | 5.75 | 14.82 | 0.00 |
xy | -0.00 | -0.00 | 13.06 |
Stiffness tensor eigenvalues | |
Eigenvalue 0 | 13.06 N/m |
Eigenvalue 1 | 13.79 N/m |
Eigenvalue 2 | 47.51 N/m |
Key values [eV] | |
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Band gap (PBE) | 0.528 |
Direct band gap (PBE) | 0.528 |
Valence band maximum wrt. vacuum (PBE) | -5.387 |
Conduction band minimum wrt. vacuum (PBE) | -4.860 |
Miscellaneous details | |
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Unique ID | 4Ag2Se3-1 |
Number of atoms | 20 |
Number of species | 2 |
Formula | Ag8Se12 |
Reduced formula | Ag2Se3 |
Stoichiometry | A2B3 |
Unit cell area [Å2] | 65.874 |
Original file-system folder | /home/niflheim2/cmr/C2DB-ASR/tree_Wang23/A2B3/Ag2Se3/Ag8Se12-deaccb24f6a5 |
Old uid | Ag8Se12-adcd7408dfaf |
Space group (bulk in AA-stacking) | Aem2 |
Space group number (bulk in AA-stacking) | 39 |
Point group | mm2 |
Inversion symmetry | No |
Layer group number | 36 |
Layer group | cm2e |
2D Bravais type | Centered rectangular (oc) |
Thickness [Å] | 4.643 |
Structure origin | Wang23 |
Miscellaneous details | |
---|---|
Band gap (PBE) [eV] | 0.528 |
Direct band gap (PBE) [eV] | 0.528 |
gap_dir_nosoc | 0.532 |
Vacuum level [eV] | 3.819 |
Fermi level wrt. vacuum (PBE) [eV] | -5.124 |
Valence band maximum wrt. vacuum (PBE) [eV] | -5.387 |
Conduction band minimum wrt. vacuum (PBE) [eV] | -4.860 |
minhessianeig | -0.035 |
Dynamically stable | No |
Energy [eV] | -63.928 |
Magnetic | No |
Total magnetic moment [μB] | 0.000 |
Spin axis | z |
Magnetic anisotropy energy, xz [meV/unit cell] | 0.000 |
Magnetic anisotropy energy, yz [meV/unit cell] | 0.000 |
Energy above convex hull [eV/atom] | 0.083 |
Heat of formation [eV/atom] | 0.029 |