material

BaCa4(CuN2)2

ID:

mvc-16440

DOI:

10.17188/1319823


Tags: High pressure experimental phase Tetracalcium barium bis(dinitrocuprate(I))

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
-0.756 eV

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

Energy Above Hull / Atom
0.000 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
3.72 g/cm3

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

Decomposes To
Stable
Band Gap
0.240 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
P4/ncc [130]
Hall
P 4ab 2n 1ab
Point Group
4/mmm
Crystal System
tetragonal

Band Structure

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

sign indicates spin ↑ ↓

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:
substrate material substrate orientation film orientation elastic energy [meV] MCIA [Å2]
CaF2 (mp-2741) <1 0 0> <0 0 1> 0.002 274.4
LiAlO2 (mp-3427) <0 0 1> <0 0 1> 0.005 137.2
SiO2 (mp-6930) <1 0 0> <1 0 1> 0.008 248.6
GaP (mp-2490) <1 0 0> <0 0 1> 0.014 274.4
Ag (mp-124) <1 1 0> <1 1 0> 0.015 146.6
KTaO3 (mp-3614) <1 0 0> <0 0 1> 0.018 274.4
ZrO2 (mp-2858) <0 0 1> <0 0 1> 0.018 137.2
BaTiO3 (mp-5986) <0 0 1> <0 0 1> 0.027 274.4
WSe2 (mp-1821) <1 0 0> <1 0 1> 0.031 248.6
Mg (mp-153) <1 1 1> <0 0 1> 0.032 274.4
Au (mp-81) <1 1 0> <1 1 0> 0.034 146.6
Ag (mp-124) <1 0 0> <0 0 1> 0.037 68.6
GaN (mp-804) <1 1 1> <0 0 1> 0.047 274.4
Al (mp-134) <1 0 0> <0 0 1> 0.048 274.4
TiO2 (mp-2657) <1 0 0> <1 0 0> 0.078 207.3
LiAlO2 (mp-3427) <1 1 1> <0 0 1> 0.083 274.4
Au (mp-81) <1 0 0> <0 0 1> 0.090 68.6
Mg (mp-153) <1 0 1> <0 0 1> 0.090 205.8
SrTiO3 (mp-4651) <0 0 1> <0 0 1> 0.120 274.4
LiGaO2 (mp-5854) <1 0 1> <0 0 1> 0.127 137.2
NdGaO3 (mp-3196) <0 0 1> <0 0 1> 0.148 274.4
InP (mp-20351) <1 1 0> <1 0 1> 0.158 248.6
Si (mp-149) <1 0 0> <0 0 1> 0.159 274.4
CeO2 (mp-20194) <1 0 0> <0 0 1> 0.167 274.4
YAlO3 (mp-3792) <1 1 0> <0 0 1> 0.171 274.4
GaN (mp-804) <1 0 1> <0 0 1> 0.183 205.8
LiGaO2 (mp-5854) <0 0 1> <1 0 1> 0.218 248.6
TiO2 (mp-2657) <0 0 1> <0 0 1> 0.271 274.4
TeO2 (mp-2125) <0 1 0> <1 0 0> 0.303 207.3
MgAl2O4 (mp-3536) <1 0 0> <0 0 1> 0.313 68.6
AlN (mp-661) <1 1 0> <1 1 1> 0.353 161.9
PbS (mp-21276) <1 1 0> <1 0 1> 0.388 248.6
ZrO2 (mp-2858) <1 1 0> <0 0 1> 0.409 274.4
WSe2 (mp-1821) <1 0 1> <1 0 1> 0.421 248.6
PbS (mp-21276) <1 1 1> <1 0 1> 0.433 124.3
Ge (mp-32) <1 0 0> <0 0 1> 0.439 68.6
SiC (mp-7631) <1 1 0> <1 0 1> 0.441 248.6
InP (mp-20351) <1 1 1> <1 0 1> 0.494 124.3
InP (mp-20351) <1 0 0> <0 0 1> 0.510 68.6
GaAs (mp-2534) <1 0 0> <0 0 1> 0.564 68.6
ZnSe (mp-1190) <1 0 0> <0 0 1> 0.649 68.6
TeO2 (mp-2125) <1 0 0> <1 1 0> 0.680 146.6
MoSe2 (mp-1634) <1 0 0> <1 0 1> 0.718 248.6
TeO2 (mp-2125) <1 0 1> <1 1 1> 0.820 161.9
LiGaO2 (mp-5854) <0 1 1> <0 0 1> 0.955 205.8
YVO4 (mp-19133) <0 0 1> <0 0 1> 0.998 274.4
Up to 50 entries displayed.
minimal coincident interface area.

Elasticity

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.

Once you have registered you can also "vote" for full calculation of this material's elastic properties.

Similar Structures beta feature

Explanation of dissimilarity measure: Documentation.
material dissimilarity Ehull # of elements
BaCa4(CuN2)2 (mvc-16440) 0.0027 0.000 4
BaCa4(CoN2)2 (mvc-16412) 0.2401 0.000 4
CsK2CoO2 (mp-554962) 0.6869 0.000 4
CsK2AuO2 (mp-557807) 0.6828 0.000 4
BaCa4(CoN2)2 (mp-606338) 0.2226 0.000 4
Ca5(CoN2)2 (mvc-16358) 0.5964 0.000 3
Ca5(CoN2)2 (mp-569383) 0.5974 0.001 3
Na3CoO2 (mp-31576) 0.6212 0.013 3
Na3NiO2 (mp-764659) 0.6115 0.119 3
Na3NiO2 (mp-773555) 0.6961 0.140 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

Structure Optimization

Run Type
GGA
Energy Cutoff
520 eV
# of K-points
None
U Values
--
Pseudopotentials
VASP PAW: Ba_sv Ca_sv Cu_pv N
Final Energy/Atom
-5.3037 eV
Corrected Energy
-233.3612 eV
-233.3612 eV = -233.3612 eV (uncorrected energy)

Detailed input parameters and outputs for all calculations


Show JSON History Show BibTex Citation Download BibTex Citation
ICSD IDs
  • 86066
Submitted by
User remarks:
  • High pressure experimental phase
  • Tetracalcium barium bis(dinitrocuprate(I))

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)