material

V2MoO8

ID:

mp-561475

DOI:

10.17188/1272093


Tags: High pressure experimental phase

Material Details

Final Magnetic Moment
0.000 μB

Calculated total magnetic moment for the unit cell within the magnetic ordering provided (see below). Typically accurate to the second digit.

Magnetic Ordering
Non-magnetic
Formation Energy / Atom
-2.171 eV

Calculated formation energy from the elements normalized to per atom in the unit cell.

Energy Above Hull / Atom
0.030 eV

The 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.

Density
3.47 g/cm3

The calculated bulk crystalline density, typically underestimated due calculated cell volumes overestimated on average by 3% (+/- 6%)

Decomposes To
MoO3 + V2O5
Band Gap
1.505 eV

In 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.

Space Group

Hermann Mauguin
Cmm2 [35]
Hall
C 2 2
Point Group
mm2
Crystal System
orthorhombic
We have not yet calculated a detailed bandstructure for this material

X-Ray Diffraction

    Select radiation source:
  • Cu
  • Ag
  • Mo
  • Fe

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%)

Substrates

Reference for minimal coincident interface area (MCIA) and elastic energy:
substrate orientation:
No elastic tensor calculated for this material, so elastic energies not avaialable. Sorting by MCIA instead.
substrate material substrate orientation film orientation MCIA [Å2]
LaAlO3 (mp-2920) <0 0 1> <0 1 0> 305.7
LaAlO3 (mp-2920) <1 1 0> <0 1 0> 241.4
AlN (mp-661) <1 0 1> <0 1 0> 193.1
AlN (mp-661) <1 1 1> <0 1 0> 241.4
CeO2 (mp-20194) <1 0 0> <0 1 0> 241.4
CeO2 (mp-20194) <1 1 0> <0 1 0> 337.9
GaAs (mp-2534) <1 0 0> <0 1 0> 337.9
GaN (mp-804) <1 0 0> <0 0 1> 215.9
SiO2 (mp-6930) <1 0 0> <0 1 0> 193.1
SiO2 (mp-6930) <1 0 1> <0 1 0> 321.8
SiO2 (mp-6930) <1 1 1> <0 1 0> 160.9
KCl (mp-23193) <1 0 0> <0 1 0> 337.9
KCl (mp-23193) <1 1 0> <0 1 0> 241.4
DyScO3 (mp-31120) <0 0 1> <1 0 1> 221.2
DyScO3 (mp-31120) <0 1 1> <0 0 1> 215.9
DyScO3 (mp-31120) <1 0 0> <0 1 0> 225.3
DyScO3 (mp-31120) <1 0 1> <1 0 1> 110.6
InAs (mp-20305) <1 0 0> <0 1 0> 193.1
InAs (mp-20305) <1 1 0> <0 1 0> 160.9
InAs (mp-20305) <1 1 1> <0 1 0> 64.4
ZnSe (mp-1190) <1 0 0> <0 1 0> 337.9
ZnSe (mp-1190) <1 1 0> <0 1 0> 225.3
LaAlO3 (mp-2920) <1 0 0> <0 1 0> 144.8
KTaO3 (mp-3614) <1 0 0> <0 1 0> 241.4
KTaO3 (mp-3614) <1 1 0> <0 1 0> 112.6
KTaO3 (mp-3614) <1 1 1> <1 0 1> 110.6
AlN (mp-661) <0 0 1> <0 1 1> 221.2
AlN (mp-661) <1 0 0> <0 1 0> 321.8
AlN (mp-661) <1 1 0> <0 1 1> 221.2
CdS (mp-672) <0 0 1> <0 1 0> 193.1
CdS (mp-672) <1 0 0> <0 1 0> 144.8
CdS (mp-672) <1 0 1> <0 1 0> 273.5
CdS (mp-672) <1 1 0> <0 1 0> 257.4
CdS (mp-672) <1 1 1> <0 1 0> 160.9
LiF (mp-1138) <1 0 0> <0 1 0> 241.4
CeO2 (mp-20194) <1 1 1> <0 1 0> 209.2
GaAs (mp-2534) <1 1 0> <0 1 0> 225.3
BaF2 (mp-1029) <1 0 0> <0 1 0> 193.1
BaF2 (mp-1029) <1 1 0> <0 1 0> 160.9
LiF (mp-1138) <1 1 0> <0 1 0> 160.9
LiF (mp-1138) <1 1 1> <0 1 0> 112.6
GaN (mp-804) <0 0 1> <0 1 0> 64.4
GaN (mp-804) <1 0 1> <0 1 0> 273.5
GaN (mp-804) <1 1 0> <0 1 0> 241.4
GaN (mp-804) <1 1 1> <0 1 0> 241.4
Te2W (mp-22693) <0 0 1> <0 1 0> 241.4
SiO2 (mp-6930) <0 0 1> <0 1 0> 64.4
YVO4 (mp-19133) <0 0 1> <0 1 0> 160.9
YVO4 (mp-19133) <1 0 0> <0 0 1> 143.9
TePb (mp-19717) <1 0 0> <0 1 0> 337.9
Up to 50 entries displayed.
minimal coincident interface area.

Elasticity

Reference for tensor and properties:
Stiffness Tensor Cij (GPa)
23 41 38 0 0 0
41 273 106 0 0 0
38 106 262 0 0 0
0 0 0 48 0 0
0 0 0 0 21 0
0 0 0 0 0 28
Compliance Tensor Sij (10-12Pa-1)
68.9 -7.7 -7 0 0 0
-7.7 5.2 -1 0 0 0
-7 -1 5.2 0 0 0
0 0 0 20.7 0 0
0 0 0 0 48.7 0
0 0 0 0 0 35.3
Shear Modulus GV
44 GPa
Bulk Modulus KV
103 GPa
Shear Modulus GR
22 GPa
Bulk Modulus KR
21 GPa
Shear Modulus GVRH
33 GPa
Bulk Modulus KVRH
62 GPa
Elastic Anisotropy
9.20
Poisson's Ratio
0.27

Piezoelectricity

Reference for tensor and properties: Methodology
Piezoelectric Tensor eij (C/m2)
-0.00000 0.16460 -0.81209 -0.00004 -0.00001 0.00001
0.00001 0.00002 -0.00003 0.00000 -0.00004 0.16460
-0.00001 0.00000 -0.00002 -0.00003 -0.81209 -0.00004
Piezoelectric Modulus ‖eijmax
0.82860 C/m2
Crystallographic Direction vmax
-1.00000
0.00096
0.00004

Dielectric Properties

Reference for tensor and properties: Methodology
Dielectric Tensor εij (electronic contribution)
7.22 0.00 0.00
0.00 3.71 0.00
0.00 0.00 6.47
Dielectric Tensor εij (total)
82.79 0.00 0.00
0.00 6.36 0.00
0.00 0.00 49.25
Polycrystalline dielectric constant εpoly
(electronic contribution)
1.78
Polycrystalline dielectric constant εpoly
(total)
1.78
Refractive Index n
1.33
Potentially ferroelectric?
Unknown

Similar Structures beta feature

Explanation of dissimilarity measure: Documentation.
material dissimilarity Ehull # of elements
RbDy(WO4)2 (mp-566282) 0.6286 0.000 4
LiV(OF)2 (mp-765790) 0.7400 0.074 4
Cr2O5 (mvc-8406) 0.6257 0.090 2
Mo2O5 (mvc-4607) 0.5654 0.055 2
V2O5 (mvc-11944) 0.6176 0.000 2
V2O5 (mvc-11647) 0.6438 0.012 2
V2O5 (mp-25620) 0.6145 0.000 2
ZnMo2O5 (mvc-5304) 0.6765 0.472 3
ZnW2O5 (mvc-4941) 0.6605 0.480 3
SrWN3 (mp-989625) 0.7320 0.000 3
K2I2O3 (mp-677073) 0.7343 0.316 3
NbO2F (mp-766094) 0.7342 0.067 3
Up to 5 similar elemental, binary, ternary, quaternary, etc. structures displayed (dissimilarity threshold 0.75). Ehull: energy above hull per atom [eV].

Calculation Summary

Elasticity

Methodology

Structure Optimization

Run Type
GGA+U
Energy Cutoff
520 eV
# of K-points
None
U Values
V: 3.25 eV
Mo: 4.38 eV
Pseudopotentials
VASP PAW: V_pv Mo_pv O
Final Energy/Atom
-7.2620 eV
Corrected Energy
-92.3958 eV
-92.3958 eV = -79.8825 eV (uncorrected energy) - 6.8950 eV (MP Advanced Correction) - 5.6183 eV (MP Anion Correction)

Detailed input parameters and outputs for all calculations


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ICSD IDs
  • 25378
Submitted by
User remarks:
  • High pressure experimental phase
  • Molybdenum divanadium oxide - HT

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)