Structure info
Layer group p-6m2
Layer group number 78
Structure origin original03-18
Stability
Energy above convex hull [eV/atom] 0.208
Heat of formation [eV/atom] -1.140
Dynamically stable Yes
Basic properties
Magnetic state NM
Band gap [eV] 0.385
Band gap (HSE06) [eV] 0.920
Band gap (G₀W₀) [eV] 1.867
XYZ CIF JSON
Axis x [Å] y [Å] z [Å] Periodic
1 3.440 0.000 0.000 Yes
2 -1.720 2.979 0.000 Yes
3 0.000 0.000 19.432 No
Lengths [Å] 3.440 3.440 19.432
Angles [°] 90.000 90.000 120.000

In2O2 (2InO-2)
Heat of formation [eV/atom] -1.14
Energy above convex hull [eV/atom] 0.21
Monolayers from C2DB
In4O6, (2In2O3-1) -1.45 eV/atom
In2O2, (2InO-1) -1.15 eV/atom
In2O2, (2InO-2) -1.14 eV/atom
In2O4, (2InO2-1) -0.85 eV/atom
In2O2, (2InO-3) -0.84 eV/atom
In2O2, (2InO-4) -0.70 eV/atom
Bulk crystals from OQMD123
In16O24 -1.62 eV/atom
In 0.00 eV/atom
O8 0.00 eV/atom

Cij (N/m) xx yy xy
xx 101.16 44.80 -0.02
yy 43.16 100.18 -0.05
xy 0.00 0.00 57.76
Stiffness tensor eigenvalues
Eigenvalue 0 56.70 N/m
Eigenvalue 1 57.76 N/m
Eigenvalue 2 144.65 N/m

AB/2InO/2/phonon_bs.png
Property Value
Minimum eigenvalue of Hessian [eV/Ų] -0.00

DVB (eV) xx yy xy
Γ 4.97 4.92 -0.00
M 4.58 8.16 -3.14
K 4.75 4.67 0.01
kVBM 4.75 4.67 0.01
xx yy xy
Band Gap -4.03 -3.99 -0.01
DCB (eV) xx yy xy
Γ 0.71 0.68 -0.01
M 6.39 4.69 1.39
K 6.67 6.59 0.00
kCBM 0.71 0.68 -0.01

DOS BZ

VBM
Property (VBM) Value
Min eff. mass 1.97 m0
Max eff. mass 1.97 m0
DOS eff. mass 1.97 m0
Crystal coordinates [0.333, 0.333]
Warping parameter -0.000
Barrier height > 31.1 meV
Distance to barrier > 0.021 Å-1
CBM
Property (CBM) Value
Min eff. mass 0.32 m0
Max eff. mass 0.32 m0
DOS eff. mass 0.32 m0
Crystal coordinates [0.000, 0.000]
Warping parameter 0.000
Barrier height > 200.5 meV
Distance to barrier > 0.021 Å-1

AB/2InO/2/hse-bs.png
Property Value
KVP: Band gap (HSE06) [eV] 0.92
KVP: Direct band gap (HSE06) [eV] 2.13
Valence band maximum wrt. vacuum level (HSE06) -6.94 eV
Conduction band minimum wrt. vacuum level (HSE06) -6.02 eV

AB/2InO/2/gw-bs.png
Property Value
Band gap (G₀W₀) [eV] 1.87
Direct band gap (G₀W₀) [eV] 2.59
Valence band maximum wrt. vacuum level (G₀W₀) -7.55 eV
Conduction band minimum wrt. vacuum level (G₀W₀) -5.68 eV

ZInij ux uy uz
Px 2.61 0.00 -0.00
Py 0.00 2.61 0.00
Pz -0.00 -0.00 0.48
ZOij ux uy uz
Px -2.61 -0.00 0.00
Py -0.00 -2.61 -0.00
Pz 0.00 0.00 -0.48
ZInij ux uy uz
Px 2.61 0.00 0.00
Py 0.00 2.61 -0.00
Pz 0.00 0.00 0.48
ZOij ux uy uz
Px -2.61 -0.00 -0.00
Py -0.00 -2.61 0.00
Pz -0.00 -0.00 -0.48

AB/2InO/2/shg1.png
Element Relations
yyy yyy=-xxy=-yxx=-xyx
Others 0=xxx=xxz=xyy=xyz=xzx=xzy=xzz=yxy=yxz=yyx=yyz=yzx= yzy=yzz=zxx=zxy=zxz=zyx=zyy=zyz=zzx=zzy=zzz
AB/2InO/2/shg2.png

AB/2InO/2/rpa-pol-x.png AB/2InO/2/rpa-pol-z.png
AB/2InO/2/rpa-pol-y.png
Properties
Static interband polarizability at (x) [Å] 2.930
Static interband polarizability at (y) [Å] 2.930
Static interband polarizability at (z) [Å] 0.434
Plasma frequency (x) [Å0.5] 0.000
Plasma frequency (y) [Å0.5] 0.000

AB/2InO/2/ir-pol-x.png AB/2InO/2/ir-pol-z.png
AB/2InO/2/ir-pol-y.png
Static polarizability [Å]
Phonons only (x) 2.26
Phonons only (y) 2.26
Phonons only (z) 0.09
Total (phonons + electrons) (x) 5.18
Total (phonons + electrons) (y) 5.19
Total (phonons + electrons) (z) 0.52

AB/2InO/2/Raman.png
Mode Frequency (1/cm) Degeneracy
Mode 1 0. 3
Mode 2 39.1 2
Mode 3 140.1 1
Mode 4 373. 1
Mode 5 398.1 1
Mode 6 428.1 4

AB/2InO/2/absx.png
Property Value
The exciton binding energy from the Bethe–Salpeter equation (BSE) [eV]. 1.06
AB/2InO/2/absz.png

# Chemical symbol Charges [|e|]
0 In 1.13
1 In 1.17
2 O -1.15
3 O -1.15

cij (e/Ådim-1) xx yy xy
x -0.00 -0.00 0.03
y 0.03 -0.06 -0.00
z -0.00 0.00 0.00
cclampedij (e/Ådim-1) xx yy xy
x -0.00 -0.00 -0.37
y -0.37 0.37 0.00
z -0.00 -0.00 0.00

Shift-current
Element Relations
yyy yyy=-xyx=-yxx=-xxy
Others 0=xxx=xxz=xyy=xyz=xzx=xzy=xzz=yxy=yxz=yyx=yyz=yzx= yzy=yzz=zxx=zxy=zxz=zyx=zyy=zyz=zzx=zzy=zzz

Miscellaneous details
Unique ID 2InO-2
Number of atoms 4
Number of species 2
Formula In2O2
Reduced formula InO
Stoichiometry AB
Unit cell area [Å2] 10.250
Original file-system folder /home/niflheim2/cmr/C2DB-ASR/tree/AB/InO/In2O2-d14171d2ba1a
Old uid In2O2-d14171d2ba1a
Inversion symmetry No
Layer group p-6m2
Layer group number 78
Structure origin original03-18
Band gap [eV] 0.385
gap_dir 1.137
gap_dir_nosoc 1.137
Vacuum level [eV] 3.937
Fermi level [eV] -2.313
minhessianeig -0.000
Dynamically stable Yes
Band gap (HSE06) [eV] 0.920
gap_dir_hse 2.128
vbm_hse -3.001
cbm_hse -2.081
Miscellaneous details
Band gap (G₀W₀) [eV] 1.867
gap_dir_gw 2.587
vbm_gw -3.613
cbm_gw -1.746
E_B 1.063
Static interband polarizability at (x) [Å] 2.930
Static interband polarizability at (y) [Å] 2.930
Static interband polarizability at (z) [Å] 0.434
Static polarizability (phonons) (x) [Å] 2.255
Static polarizability (phonons + electrons) (x) [Å] 5.185
Static polarizability (phonons) (y) [Å] 2.256
Static polarizability (phonons + electrons) (y) [Å] 5.185
Static polarizability (phonons) (z) [Å] 0.091
Static polarizability (phonons + electrons) (z) [Å] 0.525
Plasma frequency (x) [Å0.5] 0.000
Plasma frequency (y) [Å0.5] 0.000
Energy [eV] -20.335
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] 0.208
Heat of formation [eV/atom] -1.140
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