Structure info
Layer group p2_1/b11
Layer group number 17
Structure origin Manti22_pushed
Stability
Energy above convex hull [eV/atom] 0.001
Heat of formation [eV/atom] -0.241
Dynamically stable No
Basic properties
Magnetic Yes
Band gap (PBE) [eV] 0.000
XYZ CIF JSON
Axis x [Å] y [Å] z [Å] Periodic
1 8.162 -0.327 0.000 Yes
2 -2.185 3.765 0.000 Yes
3 -0.000 0.000 18.074 No
Lengths [Å] 8.169 4.353 18.074
Angles [°] 90.000 90.000 122.415

Symmetries
2D Bravais type Rectangular (op)
Layer group number 17
Layer group p2_1/b11
Space group number (bulk in AA-stacking) 14
Space group (bulk in AA-stacking) P2_1/c
Point group 2/m
Inversion symmetry Yes
Structure data
Formula Ag2Br4
Stoichiometry AB2
Number of atoms 6
Unit cell area [Å2] 30.021
Thickness [Å] 3.016

Ag2Br4 (2AgBr2-1)
Heat of formation [eV/atom] -0.24
Energy above convex hull [eV/atom] 0.00
Monolayers from C2DB
Ag4Br4 (4AgBr-1) -0.35 eV/atom
Ag4Br4 (4AgBr-2) -0.34 eV/atom
Ag6Br6 (6AgBr-1) -0.34 eV/atom
Ag2Br2 (2AgBr-1) -0.34 eV/atom
Ag2Br2 (2AgBr-2) -0.34 eV/atom
Ag6Br6 (6AgBr-2) -0.34 eV/atom
Ag6Br6 (6AgBr-3) -0.33 eV/atom
Ag2Br2 (2AgBr-3) -0.33 eV/atom
Ag5Br5 (5AgBr-1) -0.33 eV/atom
Ag6Br6 (6AgBr-4) -0.32 eV/atom
Ag8Br8 (8AgBr-1) -0.32 eV/atom
Ag12Br12 (12AgBr-1) -0.32 eV/atom
Ag3Br3 (3AgBr-1) -0.32 eV/atom
Ag2Br2 (2AgBr-4) -0.31 eV/atom
Ag3Br3 (3AgBr-2) -0.31 eV/atom
Ag3Br3 (3AgBr-3) -0.31 eV/atom
Ag2Br2 (2AgBr-5) -0.30 eV/atom
Ag3Br3 (3AgBr-4) -0.30 eV/atom
Ag8Br8 (8AgBr-2) -0.30 eV/atom
Ag8Br8 (8AgBr-3) -0.30 eV/atom
Ag6Br6 (6AgBr-5) -0.30 eV/atom
AgBr (1AgBr-1) -0.30 eV/atom
Ag2Br2 (2AgBr-6) -0.29 eV/atom
Ag2Br4, (2AgBr2-1) -0.24 eV/atom
Ag4Br8 (4AgBr2-1) -0.24 eV/atom
Ag6Br12 (6AgBr2-1) -0.23 eV/atom
Ag2Br4 (2AgBr2-2) -0.20 eV/atom
AgBr2 (1AgBr2-1) -0.19 eV/atom
Ag2Br6 (2AgBr3-1) -0.19 eV/atom
Ag2Br6 (2AgBr3-2) -0.19 eV/atom
Ag4Br8 (4AgBr2-2) -0.19 eV/atom
Ag2Br6 (2AgBr3-3) -0.18 eV/atom
Ag4Br12 (4AgBr3-1) -0.16 eV/atom
AgBr3 (1AgBr3-1) -0.16 eV/atom
Ag2Br6 (2AgBr3-4) -0.15 eV/atom
AgBr2 (1AgBr2-2) -0.13 eV/atom
AgBr2 (1AgBr2-3) -0.09 eV/atom
Ag2Br6 (2AgBr3-5) -0.06 eV/atom
Ag2Br6 (2AgBr3-6) 0.01 eV/atom
Ag2 (2Ag-1) 0.31 eV/atom
Bulk crystals from OQMD123
AgBr -0.32 eV/atom
Ag4Br6 -0.28 eV/atom
Ag4 0.00 eV/atom
Br4 0.00 eV/atom

AB2/2AgBr2/1/phonon_bs.png
Minimum eigenvalue of Hessian [eV/Ų] -5.17

Cij (N/m) xx yy xy
xx 14.65 4.58 5.18
yy 3.88 8.75 2.76
xy 5.88 3.84 11.12
Stiffness tensor eigenvalues
Eigenvalue 0 6.41 N/m
Eigenvalue 1 7.12 N/m
Eigenvalue 2 20.99 N/m

Total magnetic moment [μB] 0.000
Magnetic anisotropy energy, xz [meV/unit cell] 1.420
Magnetic anisotropy energy, yz [meV/unit cell] -4.862
Atom index Atom type Local spin magnetic moment (μB) Local orbital magnetic moment (μB)
0 Ag 0.189 0.012
1 Br 0.151 0.017
2 Br 0.151 0.026
3 Ag 0.190 0.016
4 Br 0.151 0.026
5 Br 0.151 0.017

Key values [eV]
Band gap (PBE) 0.000
Direct band gap (PBE) 0.000
Fermi level wrt. vacuum (PBE) -6.296
DOS BZ

Atom No. Chemical symbol Charges [|e|]
0 Ag 0.58
1 Br -0.29
2 Br -0.29
3 Ag 0.58
4 Br -0.29
5 Br -0.29

Miscellaneous details
Unique ID 2AgBr2-1
Number of atoms 6
Number of species 2
Formula Ag2Br4
Reduced formula AgBr2
Stoichiometry AB2
Unit cell area [Å2] 30.021
Original file-system folder /home/niflheim2/cmr/C2DB-ASR/push-manti-tree/AB2/1/Ag2Br4-AB2-1-a-0
Old uid Ag2Br4-8d78c4e917b0
Space group (bulk in AA-stacking) P2_1/c
Space group number (bulk in AA-stacking) 14
Point group 2/m
Inversion symmetry Yes
Layer group number 17
Layer group p2_1/b11
2D Bravais type Rectangular (op)
Thickness [Å] 3.016
Miscellaneous details
Structure origin Manti22_pushed
Band gap (PBE) [eV] 0.000
Direct band gap (PBE) [eV] 0.000
gap_dir_nosoc 0.000
Vacuum level [eV] 2.653
Fermi level wrt. vacuum (PBE) [eV] -6.296
minhessianeig -5.174
Dynamically stable No
Energy [eV] -13.465
Magnetic Yes
Total magnetic moment [μB] 0.000
Spin axis x
Magnetic anisotropy energy, xz [meV/unit cell] 1.420
Magnetic anisotropy energy, yz [meV/unit cell] -4.862
Energy above convex hull [eV/atom] 0.001
Heat of formation [eV/atom] -0.241
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