Structure info
Layer group p4/nmm
Layer group number 64
Structure origin Lyngby22_LDP
Stability
Energy above convex hull [eV/atom] 0.000
Heat of formation [eV/atom] -0.489
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 3.536 0.000 0.000 Yes
2 -0.000 3.536 0.000 Yes
3 -0.000 0.000 18.118 No
Lengths [Å] 3.536 3.536 18.118
Angles [°] 90.000 90.000 90.000

Symmetries
2D Bravais type Square (tp)
Layer group number 64
Layer group p4/nmm
Space group number (bulk in AA-stacking) 129
Space group (bulk in AA-stacking) P4/nmm
Point group 4/mmm
Inversion symmetry Yes
Structure data
Formula Mn2S2
Stoichiometry AB
Number of atoms 4
Unit cell area [Å2] 12.504
Thickness [Å] 2.785

Mn2S2 (2MnS-1)
Heat of formation [eV/atom] -0.49
Energy above convex hull [eV/atom] 0.00
Monolayers from C2DB
MnS2 (1MnS2-1) -0.57 eV/atom
Mn3S4 (1Mn3S4-1) -0.49 eV/atom
Mn2S2, (2MnS-1) -0.49 eV/atom
MnS2 (1MnS2-2) -0.45 eV/atom
Mn4S4 (4MnS-1) -0.43 eV/atom
Mn2S2 (2MnS-2) -0.41 eV/atom
Mn2S4 (2MnS2-1) -0.40 eV/atom
Mn2S2 (2MnS-3) -0.37 eV/atom
Mn2S2 (2MnS-4) -0.35 eV/atom
MnS2 (1MnS2-3) -0.23 eV/atom
Mn2S2 (2MnS-5) -0.19 eV/atom
Mn2S2 (2MnS-6) -0.18 eV/atom
Mn2S2 (2MnS-7) -0.18 eV/atom
Mn2S10 (2MnS5-1) 0.03 eV/atom
S2 (2S-1) 0.45 eV/atom
S2 (2S-2) 0.62 eV/atom
Bulk crystals from OQMD123
Mn4S6 -0.54 eV/atom
Mn2S2 -0.45 eV/atom
Mn29 0.00 eV/atom
S48 0.00 eV/atom

materials/AB/2MnS/1/phonon_bs.png
Minimum eigenvalue of Hessian [eV/Ų] -0.00

Cij (N/m) xx yy xy
xx 37.58 58.73 -0.00
yy 58.87 37.78 -0.00
xy 0.00 0.00 115.84
Stiffness tensor eigenvalues
Eigenvalue 0 -21.12 N/m
Eigenvalue 1 96.48 N/m
Eigenvalue 2 115.84 N/m

Total magnetic moment [μB] 2.477
Magnetic anisotropy energy, xz [meV/unit cell] -0.252
Magnetic anisotropy energy, yz [meV/unit cell] -0.252
Atom index Atom type Local spin magnetic moment (μB) Local orbital magnetic moment (μB)
0 Mn 1.338 0.034
1 Mn 1.338 0.034
2 S -0.079 -0.001
3 S -0.079 -0.001

Key values [eV]
Band gap (PBE) 0.000
Direct band gap (PBE) 0.000
Fermi level wrt. vacuum (PBE) -4.834
DOS BZ

Atom No. Chemical symbol Charges [|e|]
0 Mn 0.71
1 Mn 0.71
2 S -0.70
3 S -0.70

Miscellaneous details
Unique ID 2MnS-1
Number of atoms 4
Number of species 2
Formula Mn2S2
Reduced formula MnS
Stoichiometry AB
Unit cell area [Å2] 12.504
Original file-system folder /home/niflheim2/cmr/C2DB-ASR/tree_LDP/AB/MnS/Mn2S2-d952dfecadac
Old uid Mn2S2-5ec419d68019
Space group (bulk in AA-stacking) P4/nmm
Space group number (bulk in AA-stacking) 129
Point group 4/mmm
Inversion symmetry Yes
Layer group number 64
Layer group p4/nmm
2D Bravais type Square (tp)
Thickness [Å] 2.785
Miscellaneous details
Structure origin Lyngby22_LDP
Band gap (PBE) [eV] 0.000
Direct band gap (PBE) [eV] 0.000
gap_dir_nosoc 0.000
Vacuum level [eV] 3.406
Fermi level wrt. vacuum (PBE) [eV] -4.834
minhessianeig -0.000
Dynamically stable No
Energy [eV] -29.544
Magnetic Yes
Total magnetic moment [μB] 2.477
Spin axis z
Magnetic anisotropy energy, xz [meV/unit cell] -0.252
Magnetic anisotropy energy, yz [meV/unit cell] -0.252
Energy above convex hull [eV/atom] 0.000
Heat of formation [eV/atom] -0.489
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