Final Magnetic Moment0.000 μBCalculated total magnetic moment for the unit cell within the magnetic ordering provided (see below). Typically accurate to the second digit. |
Magnetic OrderingNM |
Formation Energy / Atom-3.352 eVCalculated formation energy from the elements normalized to per atom in the unit cell. |
Energy Above Hull / Atom0.000 eVThe energy of decomposition of this material into the set of most stable materials at this chemical composition, in eV/atom. Stability is tested against all potential chemical combinations that result in the material's composition. For example, a Co2O3 structure would be tested for decomposition against other Co2O3 structures, against Co and O2 mixtures, and against CoO and O2 mixtures. |
Density7.40 g/cm3The calculated bulk crystalline density, typically underestimated due calculated cell volumes overestimated on average by 3% (+/- 6%) |
Decomposes ToStable |
Band Gap2.290 eVIn general, band gaps computed with common exchange-correlation functionals such as the LDA and GGA are severely underestimated. Typically the disagreement is reported to be ~50% in the literature. Some internal testing by the Materials Project supports these statements; typically, we find that band gaps are underestimated by ~40%. We additionally find that several known insulators are predicted to be metallic. |
Hermann MauguinPmmn [59] |
HallP 2 2ab 1ab |
Point Groupmmm |
Crystal Systemorthorhombic |
Calculated powder diffraction pattern; note that peak spacings may be affected due to inaccuracies in calculated cell volume, which is typically overestimated on average by 3% (+/- 6%)
A full elastic tensor has not been calculated for this material. Registered users can view statistical-learning-based predictions of this material's bulk and shear moduli.
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Dielectric Tensor εij∞ (electronic contribution) |
||
---|---|---|
6.40 | 0.00 | -0.00 |
0.00 | 4.74 | -0.00 |
-0.00 | -0.00 | 4.70 |
Dielectric Tensor εij (total) |
||
---|---|---|
78.03 | 0.00 | -0.00 |
0.00 | 30.85 | -0.00 |
-0.00 | -0.00 | 46.49 |
Polycrystalline dielectric constant
εpoly∞
5.28
|
Polycrystalline dielectric constant
εpoly
51.79
|
Refractive Index n2.30 |
Potentially ferroelectric?Unknown |
Explore more synthesis descriptions for materials of composition Ta2O5.
Text computed by synthesisproject.org.
Run TypeGGA |
Energy Cutoff700 eV |
# of K-pointsNone |
U Values-- |
PseudopotentialsVASP PAW: Ta_pv O |
Final Energy/Atom-9.7724 eV |
Corrected Energy-143.8362 eV
-143.8362 eV = -136.8133 eV (uncorrected energy) - 7.0229 eV (MP Anion Correction)
|
Displaying lattice parameters for primitive cell; note that calculated cell volumes are typically overestimated on average by 3% (+/- 6%). Note the primitive cell may appear less symmetric than the conventional cell representation (see "Structure Type" selector below the 3d structure)