Structure info
Layer group p-6m2
Layer group number 78
Structure origin original03-18
Stability
Energy above convex hull [eV/atom] 0.237
Heat of formation [eV/atom] -0.929
Dynamically stable No
Basic properties
Magnetic state NM
Band gap [eV] 0.000
Band gap (HSE06) [eV] 0.000
XYZ CIF JSON
Axis x [Å] y [Å] z [Å] Periodic
1 3.176 -0.000 0.000 Yes
2 -1.588 2.750 0.000 Yes
3 -0.000 0.000 24.876 No
Lengths [Å] 3.176 3.176 24.876
Angles [°] 90.000 90.000 120.000

C2H2O2Nb3 (1C2H2O2Nb3-1)
Heat of formation [eV/atom] -0.93
Energy above convex hull [eV/atom] 0.24
Monolayers from C2DB
Nb4O8, (4NbO2-1) -2.42 eV/atom
Nb2O4, (2NbO2-1) -2.38 eV/atom
NbO2, (1NbO2-1) -2.37 eV/atom
NbO2, (1NbO2-2) -2.35 eV/atom
NbO2, (1NbO2-3) -2.20 eV/atom
Nb2O6, (2NbO3-1) -2.07 eV/atom
Nb4O12, (4NbO3-1) -1.83 eV/atom
CNb2O2, (1CNb2O2-1) -1.73 eV/atom
Nb2O2, (2NbO-1) -1.53 eV/atom
C2O2Nb3, (1C2O2Nb3-1) -1.37 eV/atom
Nb2O2, (2NbO-2) -1.30 eV/atom
NbH2O2, (1NbH2O2-1) -1.24 eV/atom
O2C3Nb4, (1O2C3Nb4-1) -1.21 eV/atom
CH2Nb2O2, (1CH2Nb2O2-1) -1.13 eV/atom
Nb2O2, (2NbO-3) -1.02 eV/atom
C2H2O2Nb3, (1C2H2O2Nb3-1) -0.93 eV/atom
H2O2C3Nb4, (1H2O2C3Nb4-1) -0.92 eV/atom
H2C3Nb4, (1H2C3Nb4-1) -0.45 eV/atom
C2H2Nb3, (1C2H2Nb3-1) -0.34 eV/atom
CH2Nb2, (1CH2Nb2-1) -0.29 eV/atom
C3Nb4, (1C3Nb4-1) -0.27 eV/atom
C2H2, (2CH-1) -0.13 eV/atom
C2Nb3, (1C2Nb3-1) -0.03 eV/atom
C2, (2C-1) -0.01 eV/atom
H2Nb2, (2HNb-1) -0.01 eV/atom
NbH2, (1NbH2-1) 0.14 eV/atom
CNb2, (1CNb2-1) 0.28 eV/atom
C4Nb8, (4CNb2-1) 0.58 eV/atom
C14, (14C-1) 0.74 eV/atom
NbH4, (1NbH4-1) 0.81 eV/atom
Bulk crystals from OQMD123
Nb2O5 -2.77 eV/atom
Nb8O16 -2.64 eV/atom
Nb3O3 -2.08 eV/atom
C4O8 -1.35 eV/atom
H24O12 -1.09 eV/atom
C5Nb6 -0.66 eV/atom
C4Nb8 -0.55 eV/atom
H2Nb -0.28 eV/atom
C38H68 -0.18 eV/atom
C4 0.00 eV/atom
H2 0.00 eV/atom
Nb 0.00 eV/atom
O8 0.00 eV/atom

Cij (N/m) xx yy xy
xx 247.89 43.36 -0.02
yy 43.67 248.61 -0.02
xy 0.00 0.00 208.12
Stiffness tensor eigenvalues
Eigenvalue 0 204.73 N/m
Eigenvalue 1 208.12 N/m
Eigenvalue 2 291.77 N/m

A2B2C2D3/1C2H2O2Nb3/1/phonon_bs.png
Property Value
Minimum eigenvalue of Hessian [eV/Ų] -3.94

DOS BZ

A2B2C2D3/1C2H2O2Nb3/1/fermi_surface.png

A2B2C2D3/1C2H2O2Nb3/1/hse-bs.png
Property Value

A2B2C2D3/1C2H2O2Nb3/1/rpa-pol-x.png A2B2C2D3/1C2H2O2Nb3/1/rpa-pol-z.png
A2B2C2D3/1C2H2O2Nb3/1/rpa-pol-y.png
Properties
Static interband polarizability at (x) [Å] 44.291
Static interband polarizability at (y) [Å] 44.291
Static interband polarizability at (z) [Å] 1.334
Plasma frequency (x) [Å0.5] 12.303
Plasma frequency (y) [Å0.5] 12.303

# Chemical symbol Charges [|e|]
0 Nb 1.58
1 Nb 1.76
2 Nb 1.76
3 C -1.78
4 C -1.78
5 O -1.27
6 O -1.27
7 H 0.50
8 H 0.50

Miscellaneous details
Unique ID 1C2H2O2Nb3-1
Number of atoms 9
Number of species 4
Formula C2H2O2Nb3
Reduced formula C2H2O2Nb3
Stoichiometry A2B2C2D3
Unit cell area [Å2] 8.734
Original file-system folder /home/niflheim2/cmr/C2DB-ASR/tree/A2B2C2D3/C2H2O2Nb3/C2H2O2Nb3-137a187a149c
Old uid C2H2O2Nb3-137a187a149c
Inversion symmetry No
Layer group p-6m2
Layer group number 78
Structure origin original03-18
Band gap [eV] 0.000
gap_dir 0.000
gap_dir_nosoc 0.000
Vacuum level [eV] 5.240
Miscellaneous details
Fermi level [eV] 3.350
minhessianeig -3.937
Dynamically stable No
Band gap (HSE06) [eV] 0.000
gap_dir_hse 0.000
Static interband polarizability at (x) [Å] 44.291
Static interband polarizability at (y) [Å] 44.291
Static interband polarizability at (z) [Å] 1.334
Plasma frequency (x) [Å0.5] 12.303
Plasma frequency (y) [Å0.5] 12.303
Energy [eV] -74.681
Magnetic state NM
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] 0.237
Heat of formation [eV/atom] -0.929
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