material

NbN

ID:

mp-1009471

DOI:

10.17188/1325789


Tags: Niobium nitride - B2, HP Niobium nitride Tantalum nitride

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
NM
Formation Energy / Atom
-0.619 eV

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

Energy Above Hull / Atom
0.640 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
8.45 g/cm3

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

Decomposes To
NbN
Band Gap
0.000 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
Pm3m [221]
Hall
-P 4 2 3
Point Group
m3m
Crystal System
cubic

Electronic Structure

Band Structure and Density of States

Warning! Semi-local DFT tends to severely underestimate bandgaps. Please see the wiki for more info.

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%)

X-Ray Absorption Spectra

FEFF XANES

Select an element to display a spectrum averaged over all sites of that element in the structure.

Apply Gaussian smoothing:

0 eV
3 eV
FWHM: 0 eV

Download spectra for every symmetrically equivalent absorption site in the structure.

Download FEFF Input parameters.

Warning: These results are intended to be semi-quantitative in that corrections, such as edge shifts and Debye-Waller damping, have not been included.

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]
C (mp-48) <1 1 0> <1 0 0> 129.4
LaAlO3 (mp-2920) <0 0 1> <1 0 0> 76.1
LaAlO3 (mp-2920) <1 0 0> <1 0 0> 213.2
LaAlO3 (mp-2920) <1 0 1> <1 0 0> 76.1
LaAlO3 (mp-2920) <1 1 0> <1 1 0> 118.4
LaAlO3 (mp-2920) <1 1 1> <1 1 0> 129.2
AlN (mp-661) <0 0 1> <1 1 0> 43.1
AlN (mp-661) <1 1 0> <1 0 0> 137.0
AlN (mp-661) <1 1 1> <1 1 0> 86.1
CeO2 (mp-20194) <1 0 0> <1 0 0> 30.5
CeO2 (mp-20194) <1 1 0> <1 1 0> 43.1
GaAs (mp-2534) <1 0 0> <1 0 0> 68.5
GaAs (mp-2534) <1 1 1> <1 0 0> 114.2
SiO2 (mp-6930) <0 0 1> <1 1 1> 92.3
SiO2 (mp-6930) <1 0 1> <1 0 0> 243.6
SiO2 (mp-6930) <1 1 0> <1 1 0> 236.9
KCl (mp-23193) <1 0 0> <1 0 0> 198.0
DyScO3 (mp-31120) <0 0 1> <1 1 0> 183.0
DyScO3 (mp-31120) <0 1 0> <1 1 0> 43.1
DyScO3 (mp-31120) <1 1 1> <1 0 0> 144.7
InAs (mp-20305) <1 1 0> <1 1 0> 172.3
ZnSe (mp-1190) <1 0 0> <1 0 0> 68.5
ZnSe (mp-1190) <1 1 0> <1 1 0> 96.9
KTaO3 (mp-3614) <1 0 0> <1 0 0> 68.5
KTaO3 (mp-3614) <1 1 0> <1 1 0> 96.9
KTaO3 (mp-3614) <1 1 1> <1 1 1> 118.7
InP (mp-20351) <1 0 0> <1 0 0> 68.5
C (mp-48) <0 0 1> <1 0 0> 99.0
C (mp-48) <1 0 0> <1 0 0> 137.0
C (mp-48) <1 0 1> <1 0 0> 137.0
C (mp-48) <1 1 1> <1 1 0> 236.9
AlN (mp-661) <1 0 0> <1 1 0> 183.0
AlN (mp-661) <1 0 1> <1 0 0> 175.1
CeO2 (mp-20194) <1 1 1> <1 1 1> 52.7
Te2W (mp-22693) <1 0 1> <1 0 0> 190.3
CdWO4 (mp-19387) <0 1 1> <1 0 0> 236.0
CdWO4 (mp-19387) <1 0 0> <1 1 1> 118.7
CdWO4 (mp-19387) <1 0 1> <1 0 0> 266.5
CdWO4 (mp-19387) <1 1 0> <1 1 0> 280.0
GaAs (mp-2534) <1 1 0> <1 1 0> 96.9
BaF2 (mp-1029) <1 0 0> <1 0 0> 38.1
BaF2 (mp-1029) <1 1 0> <1 1 0> 118.4
BaF2 (mp-1029) <1 1 1> <1 1 1> 211.0
SiO2 (mp-6930) <1 0 0> <1 0 0> 137.0
SiO2 (mp-6930) <1 1 1> <1 1 0> 204.6
KCl (mp-23193) <1 1 0> <1 1 0> 118.4
KCl (mp-23193) <1 1 1> <1 1 1> 211.0
Te2Mo (mp-602) <0 0 1> <1 1 1> 171.4
Te2Mo (mp-602) <1 0 0> <1 0 0> 274.1
Ni (mp-23) <1 0 0> <1 0 0> 60.9
Up to 50 entries displayed.
minimal coincident interface area.

Elasticity

Reference for tensor and properties:
Stiffness Tensor Cij (GPa)
913 18 18 0 0 0
18 913 18 0 0 0
18 18 913 0 0 0
0 0 0 120 0 0
0 0 0 0 120 0
0 0 0 0 0 120
Compliance Tensor Sij (10-12Pa-1)
1.1 0 0 0 0 0
0 1.1 0 0 0 0
0 0 1.1 0 0 0
0 0 0 8.3 0 0
0 0 0 0 8.3 0
0 0 0 0 0 8.3
Shear Modulus GV
251 GPa
Bulk Modulus KV
316 GPa
Shear Modulus GR
170 GPa
Bulk Modulus KR
316 GPa
Shear Modulus GVRH
210 GPa
Bulk Modulus KVRH
316 GPa
Elastic Anisotropy
2.40
Poisson's Ratio
0.23

Similar Structures beta feature

Explanation of dissimilarity measure: Documentation.
material dissimilarity Ehull # of elements
Sm2AgRh (mp-972530) 0.0000 0.028 3
Na2TiAu (mp-631554) 0.0000 0.825 3
KFeTc2 (mp-631396) 0.0000 1.417 3
Sc2OsPt (mp-862364) 0.0000 0.000 3
PmSbAu2 (mp-862953) 0.0000 0.000 3
TiFeCoSb (mp-998973) 0.0000 0.186 4
TiAlFeCo (mp-998980) 0.0000 0.000 4
MnFeCoGe (mp-1018024) 0.0000 0.344 4
VFeCoSi (mp-1066609) 0.0000 0.002 4
VFeCoSb (mp-1066862) 0.0000 0.164 4
K3W (mp-973446) 0.0000 1.504 2
LaHg (mp-734) 0.0000 0.000 2
BaZn (mp-902) 0.0000 0.002 2
InRh (mp-899) 0.0000 0.000 2
BeCo (mp-2773) 0.0000 0.000 2
Xe (mp-979285) 0.0000 0.002 1
Cu (mp-998890) 0.0000 0.037 1
Kr (mp-974400) 0.0000 0.002 1
H2 (mp-632250) 0.0000 0.000 1
Ge (mp-998883) 0.0000 0.340 1
Up to 5 similar elemental, binary, ternary, quaternary, etc. structures displayed (dissimilarity threshold 0.75). Ehull: energy above hull per atom [eV].

Synthesis Descriptions

Traditionally, niobium nitride could be prepared by several methods. Miki et al. reported a mechanical alloying method to prepare nanocrystalline niobium nitrides. But it required sintering the milled [...]
Commercial powder of NbN (99% purity, mean grain size of 50m) was purchased from Alfa Aesar. Mg2Ni hydride was prepared from hydrogenated Mg2Ni powder [22]. The Mg2Ni hydride and NbN powder were bal [...]
chef hat mixing beaker

Explore more synthesis descriptions for materials of composition NbN.

Text computed by synthesisproject.org.

Calculation Summary

Elasticity

Methodology

Structure Optimization

Run Type
GGA
Energy Cutoff
520 eV
# of K-points
None
U Values
--
Pseudopotentials
VASP PAW: Nb_pv N
Final Energy/Atom
-9.6462 eV
Corrected Energy
-19.6535 eV
Uncorrected energy = -19.2925 eV Composition-based energy adjustment (-0.361 eV/atom x 1.0 atoms) = -0.3610 eV Corrected energy = -19.6535 eV

Detailed input parameters and outputs for all calculations


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ICSD IDs
  • 236424
  • 236423
  • 183424
Submitted by
User remarks:
  • Tantalum nitride

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)