Structure info
Layer group c2/m11
Layer group number 18
Structure origin Lyngby22_LDP
Stability
Energy above convex hull [eV/atom] 0.407
Heat of formation [eV/atom] -0.307
Dynamically stable Unknown
Basic properties
XYZ CIF JSON
Axis x [Å] y [Å] z [Å] Periodic
1 3.715 -0.000 0.000 Yes
2 -1.858 7.221 0.000 Yes
3 0.000 -0.000 34.196 No
Lengths [Å] 3.715 7.457 34.196
Angles [°] 90.000 90.000 104.435

Symmetries
2D Bravais type Centered rectangular (oc)
Layer group number 18
Layer group c2/m11
Space group number (bulk in AA-stacking) 12
Space group (bulk in AA-stacking) C2/m
Point group 2/m
Inversion symmetry Yes
Structure data
Formula Se4Al2
Stoichiometry AB2
Number of atoms 6
Unit cell area [Å2] 26.826
Thickness [Å] 5.045

Al2Se4 (2AlSe2-2)
Heat of formation [eV/atom] -0.31
Energy above convex hull [eV/atom] 0.41
Monolayers from C2DB
Al8Se12 (4Al2Se3-1) -0.86 eV/atom
Al4Se6 (2Al2Se3-1) -0.84 eV/atom
Al4Se6 (2Al2Se3-2) -0.83 eV/atom
Al4Se6 (2Al2Se3-3) -0.81 eV/atom
Al2Se3 (1Al2Se3-1) -0.79 eV/atom
Al6Se9 (3Al2Se3-1) -0.77 eV/atom
Al2Se3 (1Al2Se3-2) -0.77 eV/atom
Al3Se4 (1Al3Se4-1) -0.72 eV/atom
Al2Se2 (2AlSe-1) -0.72 eV/atom
Al2Se2 (2AlSe-2) -0.71 eV/atom
Al2Se2 (2AlSe-3) -0.69 eV/atom
Al2Se5 (1Al2Se5-1) -0.60 eV/atom
Al2Se4 (2AlSe2-1) -0.55 eV/atom
AlSe2 (1AlSe2-1) -0.55 eV/atom
Al2Se2 (2AlSe-4) -0.36 eV/atom
Al2Se4, (2AlSe2-2) -0.31 eV/atom
Al2Se2 (2AlSe-5) -0.14 eV/atom
AlSe4 (1AlSe4-1) -0.13 eV/atom
Se2 (2Se-1) 0.21 eV/atom
Se2 (2Se-2) 0.29 eV/atom
Bulk crystals from OQMD123
Al4Se6 -0.84 eV/atom
Al 0.00 eV/atom
Se3 0.00 eV/atom

Miscellaneous details
Unique ID 2AlSe2-2
Number of atoms 6
Number of species 2
Formula Se4Al2
Reduced formula Se2Al
Stoichiometry AB2
Unit cell area [Å2] 26.826
Original file-system folder /home/niflheim2/cmr/C2DB-ASR/tree_LDP/AB2/AlSe2/Al2Se4-a17d3421542a
Old uid Al2Se4-a1ebde8a81f2
Space group (bulk in AA-stacking) C2/m
Space group number (bulk in AA-stacking) 12
Miscellaneous details
Point group 2/m
Inversion symmetry Yes
Layer group number 18
Layer group c2/m11
2D Bravais type Centered rectangular (oc)
Thickness [Å] 5.045
Structure origin Lyngby22_LDP
Dynamically stable Unknown
Energy [eV] -23.248
Energy above convex hull [eV/atom] 0.407
Heat of formation [eV/atom] -0.307
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