Ti2O4

Axis x y z Periodic
1 -1.888 1.888 4.790 True
2 1.888 -1.888 4.790 True
3 1.888 1.888 -4.790 True
Lengths: 5.4845.4845.484
Angles: 139.725139.72558.272

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Mode Frequency (THz) Frequency (1/cm) Raman Activity IR Activity IR Labels Degeneracy
Mode 0 0.000 0.000 ? ? None 3
Mode 1 4.091 136.474 X Eg 2
Mode 2 4.976 165.975 X Eg 2
Mode 3 6.861 228.866 X Eu 2
Mode 4 9.835 328.053 X A2u 1
Mode 5 11.240 374.921 X B1g 1
Mode 6 12.605 420.463 X Eu 2
Mode 7 14.636 488.189 X B1g 1
Mode 8 15.340 511.700 X A1g 1
Mode 9 16.081 536.389 B2u 1
Mode 10 18.629 621.389 X Eg 2

ZOij Ux Uy Uz
Px-5.540.000.00
Py0.00-1.12-0.00
Pz0.000.00-2.90
ZTiij Ux Uy Uz
Px6.660.000.00
Py0.006.66-0.00
Pz0.000.005.79

Key Description
pretty Pretty Formula TiO2
stoichiometry Stoichiometry based on Pretty Formula AB2
mpid Material project id mp-390
bandgap_mp Bandgap from The Materials Project (eV) 2.062
bandgap Calculated Bandgap (eV)
cbm Conduction band minimum (eV)
vbm Valence band maximum (eV)
natoms Number of atoms 6
volume Volume of unit cell (Ang3)
mass Sum of atomic masses in unit cell (au)
diel_mp Dielectric constants form The Materials Project
7.028-0.0000.000
-0.0007.028-0.000
0.000-0.0006.460
diel Dielectric constants
7.1070.0000.000
0.0007.1070.000
0.0000.0006.420
pointgroup Point Group 4/mmm
spacegroup Hermann Mauguin I4_1/amd (141)
negative_freq_Gamma Negative frequency in Gamma-point False
negative_freq_path Negative frequency in phonon dispersion True
dimensionality Dimensionality with Larsen method 3D
dimensionality_fcdimen Dimensionality with FCDimen method Dimensionality not calculated
sc_size Supercell size used in phonon calculation [3, 3, 1]
mp_e_above_hull Energy Above Hull / Atom (eV) 0.006
exp_obs Experimentally observed Based on Materials project True
tags Tags from Materials project ['Anatase', 'Anatase, nanocrystalline', 'Titanium oxide - anatase, nanocrystalline', 'Titanium dioxide', 'Titanium oxide - nanocrystalline', 'Titanium oxide']
icsd ICSD ids ['icsd-193267', 'icsd-96946', 'icsd-190785', 'icsd-154603', 'icsd-200392', 'icsd-94566', 'icsd-31064', 'icsd-189318', 'icsd-9853', 'icsd-154609', 'icsd-154610', 'icsd-76173', 'icsd-154601', 'icsd-184368', 'icsd-92363', 'icsd-193265', 'icsd-154607', 'icsd-9854', 'icsd-9855', 'icsd-202242', 'icsd-154608', 'icsd-44882', 'icsd-156838', 'icsd-154604', 'icsd-172914', 'icsd-154602', 'icsd-237000', 'icsd-93098', 'icsd-159910', 'icsd-9852', 'icsd-24276', 'icsd-202243', 'icsd-193271', 'icsd-63711', 'icsd-172916', 'icsd-161908', 'icsd-193269', 'icsd-183767']
Refs References Phonon Database , Materials Project
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