JVASP-30464_Tl(IO3)3
JARVIS-ID:JVASP-30464 Functional:optB88-vdW Primitive cell Primitive cell Conventional cell Conventional cell
Chemical formula:Tl(IO3)3 Formation energy/atom (eV):-0.431 a 7.444 Å α:83.582 ° a 9.919 Å α:90.0 °
Space-group :R-3, 148 Relaxed energy/atom (eV):-2.4867 b 7.441 Å β:83.579 ° b 9.919 Å β:90.0 °
Calculation type:Bulk SCF bandgap (eV):2.151 c 7.441 Å γ:83.6 ° c 14.257 Å γ:120.0 °
Crystal system:trigonal Point group:-3 Density (gcm-3):5.98 Volume (3):404.94 nAtoms_prim:26 nAtoms_conv:78
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Structural analysis [Reference]

The following shows the X-ray diffraction (XRD)[Source-code] pattern and the Radial distribution function (RDF) plots [Source-code]. XRD peaks should be comparable to experiments for bulk structures. Relative intensities may differ. For mono- and multi-layer structures , we take the z-dimension during DFT calculation for XRD calculations, which may differ from the experimental set-up.


Electronic structure [Reference]

The following shows the electronic density of states and bandstructure [Source-code]. DFT is generally predicted to underestimate bandgap of materials. Accurate band-gaps are obtained with higher level methods (with high computational requirement) such as HSE, GW , which are under progress. If available, MBJ data should be comparable to experiments also. Total DOS, Orbital DOS and Element dos [Source-code] buttons are provided for density of states options. Energy is rescaled to make Fermi-energy zero. In the bandstructure plot [Source-code], spin up is shown with blue lines while spin down are shown with red lines. Non-degenerate spin-up and spin-down states (if applicable) would imply a net orbital magnetic moment in the system. Fermi-occupation tolerance for bandgap calculation is chosen as 0.001.

High-symmetry kpoints based bandgap (eV): 2.143I


Electrostatic potential [Reference]

The following plot shows the plane averaged electrostatic potential (ionic+Hartree) along x, y and z-directions. The red line shows the Fermi-energy while the green line shows the maximum value of the electrostatic potential. For slab structures (with vacuum along z-direction), the difference in these two values can be used to calculate work-function of the material.


Optoelectronic properties Semi-local [Reference]

Incident photon energy dependence of optical is shown below [Source-code]. Only interband optical transitions are taken into account.Please note the underestimatation of band-gap problem with DFT will reflect in the spectra as well. For very accurate optical properties GW/BSE calculation would be needed, which is yet to be done because of their very high computational cost. Optical properties for mono-/multi-layer materials were rescaled with the actual thickness to simulation z-box ratio. Absorption coeffiecient is in cm-1 unit. Also, ionic contributions were neglected.

Dense k-mesh based bandgap is : 2.1505 eV

Static real-parts of dielectric function in x,y,z: 5.76,5.76,5.04


Magnetic moment [Reference]

The orbital magnetic moment was obtained after SCF run. This is not a DFT+U calculation, hence the data could be used to predict zero or non-zero magnetic moment nature of the material only.

Total magnetic moment: -0.0 μB

Magnetic moment per atom: -0.0 μB

Magnetization
Elementsspdtot
Tl-0.0-0.0-0.0-0.0
Tl-0.0-0.0-0.0-0.0
I0.00.0-0.00.0
I0.00.0-0.00.0
I-0.00.00.00.0
I0.00.00.00.0
I-0.00.0-0.00.0
I-0.00.00.00.0
O-0.00.00.00.0
O-0.00.00.00.0
O0.0-0.00.0-0.0
O-0.0-0.00.0-0.0
O-0.00.00.00.0
O0.0-0.00.0-0.0
O-0.00.00.00.0
O0.0-0.00.0-0.0
O-0.00.00.00.0
O-0.0-0.00.0-0.0
O0.0-0.00.0-0.0
O-0.00.00.00.0
O-0.00.00.00.0
O-0.0-0.00.0-0.0
O0.0-0.00.0-0.0
O-0.0-0.00.0-0.0
O-0.0-0.00.0-0.0
O0.0-0.00.0-0.0

See also

Links to other databases or papers are provided below

mp-972032

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