material

Ir3Se8
ID:

mp-9888
DOI:

10.17188/1316771

Tags: Iridium selenide (3/8)

Material Details

Final Magnetic Moment
0.003 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
-0.294 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
9.01 g/cm3

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

Decomposes To
Stable
Band Gap
0.000 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
R3 [148]
Hall
-R 3
Point Group
3
Crystal System
trigonal

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:
substrate material substrate orientation film orientation elastic energy [meV] MCIA† [Å2]
SiC (mp-11714) <0 0 1> <0 0 1> 0.001 256.7
YAlO3 (mp-3792) <1 0 0> <0 0 1> 0.001 320.9
SiC (mp-7631) <0 0 1> <0 0 1> 0.002 256.7
LiGaO2 (mp-5854) <1 1 0> <0 0 1> 0.005 192.5
Ni (mp-23) <1 1 1> <0 0 1> 0.008 64.2
YAlO3 (mp-3792) <0 1 0> <1 1 0> 0.015 155.2
C (mp-48) <0 0 1> <0 0 1> 0.025 256.7
GaN (mp-804) <1 0 0> <1 0 0> 0.035 268.8
MoSe2 (mp-1634) <0 0 1> <0 0 1> 0.042 256.7
WSe2 (mp-1821) <0 0 1> <0 0 1> 0.043 256.7
C (mp-48) <1 1 0> <1 0 0> 0.050 268.8
GaN (mp-804) <1 0 1> <1 0 0> 0.054 268.8
Fe3O4 (mp-19306) <1 0 0> <1 0 1> 0.073 220.4
Ni (mp-23) <1 1 0> <1 1 0> 0.095 155.2
LiF (mp-1138) <1 1 1> <0 0 1> 0.098 256.7
Al2O3 (mp-1143) <0 0 1> <0 0 1> 0.098 256.7
MgO (mp-1265) <1 1 0> <1 1 0> 0.105 155.2
C (mp-48) <1 1 1> <1 0 0> 0.111 268.8
LaF3 (mp-905) <1 0 0> <0 0 1> 0.119 320.9
BN (mp-984) <1 1 1> <1 0 0> 0.120 268.8
MgO (mp-1265) <1 0 0> <1 0 1> 0.147 110.2
WSe2 (mp-1821) <1 1 0> <0 0 1> 0.151 256.7
Mg (mp-153) <1 0 0> <1 0 0> 0.158 268.8
PbS (mp-21276) <1 1 0> <1 1 0> 0.189 155.2
InAs (mp-20305) <1 1 0> <1 0 0> 0.208 268.8
Mg (mp-153) <1 0 1> <1 0 0> 0.216 268.8
ZnTe (mp-2176) <1 1 0> <1 0 0> 0.218 268.8
LiAlO2 (mp-3427) <0 0 1> <1 0 0> 0.219 268.8
SiO2 (mp-6930) <0 0 1> <0 0 1> 0.251 64.2
SiC (mp-8062) <1 1 0> <1 0 0> 0.252 268.8
PbS (mp-21276) <1 0 0> <1 0 1> 0.269 110.2
ZrO2 (mp-2858) <0 1 1> <0 0 1> 0.281 192.5
LiGaO2 (mp-5854) <1 0 1> <1 0 1> 0.292 220.4
SiO2 (mp-6930) <1 1 1> <0 0 1> 0.294 320.9
CaCO3 (mp-3953) <1 0 0> <0 0 1> 0.295 256.7
Ge3(BiO3)4 (mp-23560) <1 1 1> <0 0 1> 0.325 192.5
LiAlO2 (mp-3427) <1 0 0> <1 0 0> 0.327 268.8
WSe2 (mp-1821) <1 1 1> <0 0 1> 0.330 256.7
KTaO3 (mp-3614) <1 1 1> <0 0 1> 0.334 192.5
CdSe (mp-2691) <1 1 0> <1 0 0> 0.361 268.8
LiGaO2 (mp-5854) <0 1 0> <1 0 0> 0.371 268.8
ZnO (mp-2133) <1 0 0> <0 0 1> 0.382 320.9
BaTiO3 (mp-5986) <1 1 0> <0 0 1> 0.393 192.5
GaSb (mp-1156) <1 1 0> <1 0 0> 0.408 268.8
SiO2 (mp-6930) <1 0 1> <0 0 1> 0.414 320.9
InP (mp-20351) <1 1 0> <0 0 1> 0.443 256.7
Al (mp-134) <1 1 1> <0 0 1> 0.463 192.5
PbS (mp-21276) <1 1 1> <0 0 1> 0.464 64.2
PbSe (mp-2201) <1 1 0> <1 0 0> 0.473 268.8
SiC (mp-8062) <1 0 0> <0 0 1> 0.490 192.5
Up to 50 entries displayed.
†minimal coincident interface area.

Elasticity

Reference for tensor and properties:
Visualize with ELATE
Stiffness Tensor Cij (GPa)
151 46 56 15 -1 0
46 151 56 -15 1 0
56 56 135 0 0 0
15 -15 0 71 0 1
-1 1 0 0 71 15
0 0 0 1 15 52
Compliance Tensor Sij (10-12Pa-1)
8.4 -1.7 -2.8 -2.1 0.1 0
-1.7 8.4 -2.8 2.1 -0.1 0
-2.8 -2.8 9.7 0 0 0
-2.1 2.1 0 14.9 0 -0.1
0.1 -0.1 0 0 14.9 -4.2
0 0 0 -0.1 -4.2 20.3
Shear Modulus GV
58 GPa
Bulk Modulus KV
84 GPa
Shear Modulus GR
53 GPa
Bulk Modulus KR
84 GPa
Shear Modulus GVRH
55 GPa
Bulk Modulus KVRH
84 GPa
Elastic Anisotropy
0.47
Poisson's Ratio
0.23

Similar Structures beta feature

Explanation of dissimilarity measure: Documentation.
material dissimilarity Ehull # of elements
LiFeF3 (mp-777522) 0.6007 0.481 3
ScBiO3 (mp-555769) 0.5992 0.034 3
CoPS3 (mp-676437) 0.6016 0.108 3
NiPSe3 (mp-1079754) 0.5109 0.066 3
CrGeTe3 (mp-1078220) 0.5927 0.260 3
Li4Fe(TeO4)3 (mp-777889) 0.6179 0.214 4
Li2Ti3BiO8 (mp-754723) 0.5616 0.119 4
Li4V4(OF3)3 (mp-765901) 0.6101 0.101 4
Ta2TiZn2O8 (mvc-2345) 0.5810 0.159 4
TiNb2Zn2O8 (mvc-3345) 0.5665 0.120 4
Te8Rh3 (mp-7273) 0.2315 0.000 2
Rh9Se20 (mp-684800) 0.4888 0.027 2
Te2Ir (mp-569388) 0.5563 0.000 2
Rh3Se8 (mp-1407) 0.0887 0.000 2
Rh3Se8 (mp-32861) 0.2006 0.007 2
Li4CrSb(WO6)2 (mp-764950) 0.5956 0.036 5
Li4CrTe(WO6)2 (mp-777147) 0.5868 0.168 5
Li4CrSb(TeO6)2 (mp-781050) 0.5928 0.048 5
Li4FeBi(TeO6)2 (mp-776005) 0.5683 0.036 5
Li4CrBi(TeO6)2 (mp-775998) 0.5664 0.076 5
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
Energy Cutoff
520 eV
# of K-points
None
U Values
--
Pseudopotentials
VASP PAW: Ir Se
Final Energy/Atom
-5.2474 eV
Corrected Energy
-61.4974 eV
Uncorrected energy = -57.7214 eV Composition-based energy adjustment (-0.472 eV/atom x 8.0 atoms) = -3.7760 eV Corrected energy = -61.4974 eV

Detailed input parameters and outputs for all calculations

Show JSON History Show BibTex Citation Download BibTex Citation
ICSD IDs
  • 40823
Submitted by
User remarks:
  • Iridium selenide (3/8)

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)