material

Sr(FeO2)2

ID:

mp-21926


Tags: Strontium diiron(III) oxide Strontioferrite

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
FiM
Formation Energy / Atom
-2.294 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
4.12 g/cm3

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

Decomposes To
Stable
Band Gap
1.888 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
P21/c [14]
Hall
-P 2ybc
Point Group
2/m
Crystal System
monoclinic

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]
Ga2O3 (mp-886) <1 0 0> <0 1 0> 0.007 308.0
TiO2 (mp-2657) <1 0 1> <1 0 -1> 0.009 103.0
TiO2 (mp-2657) <1 1 0> <0 0 1> 0.018 272.8
LiAlO2 (mp-3427) <1 1 1> <0 0 1> 0.021 272.8
SiC (mp-7631) <0 0 1> <0 1 0> 0.030 308.0
LiAlO2 (mp-3427) <1 0 0> <0 1 0> 0.031 231.0
SiC (mp-11714) <0 0 1> <0 1 0> 0.032 308.0
C (mp-48) <1 1 1> <0 1 1> 0.037 238.3
Te2W (mp-22693) <0 0 1> <0 1 0> 0.051 154.0
LiGaO2 (mp-5854) <1 0 1> <0 0 1> 0.058 90.9
ZrO2 (mp-2858) <0 1 0> <0 1 0> 0.079 308.0
Ag (mp-124) <1 0 0> <0 0 1> 0.086 272.8
SiO2 (mp-6930) <1 0 0> <0 0 1> 0.090 272.8
Mg (mp-153) <1 0 0> <0 1 0> 0.095 231.0
Ni (mp-23) <1 0 0> <0 1 0> 0.119 231.0
BaTiO3 (mp-5986) <1 1 0> <0 1 0> 0.153 308.0
AlN (mp-661) <1 1 0> <0 0 1> 0.162 272.8
TiO2 (mp-2657) <1 1 1> <1 1 -1> 0.163 257.3
GaTe (mp-542812) <1 0 0> <0 0 1> 0.173 90.9
MgAl2O4 (mp-3536) <1 0 0> <0 0 1> 0.175 272.8
LaAlO3 (mp-2920) <0 0 1> <1 0 -1> 0.186 103.0
ZrO2 (mp-2858) <1 1 -1> <0 1 0> 0.189 231.0
TeO2 (mp-2125) <0 1 0> <1 0 0> 0.190 135.0
Ge (mp-32) <1 0 0> <0 0 1> 0.265 272.8
AlN (mp-661) <0 0 1> <1 0 0> 0.266 135.0
GdScO3 (mp-5690) <0 1 0> <0 0 1> 0.300 90.9
NdGaO3 (mp-3196) <0 1 0> <1 1 -1> 0.303 128.6
NdGaO3 (mp-3196) <1 1 1> <1 0 -1> 0.313 206.1
LiGaO2 (mp-5854) <0 0 1> <0 0 1> 0.333 272.8
GaAs (mp-2534) <1 0 0> <0 0 1> 0.358 272.8
SiC (mp-8062) <1 1 1> <1 0 0> 0.363 135.0
BaTiO3 (mp-5986) <1 0 0> <0 0 1> 0.364 272.8
NdGaO3 (mp-3196) <0 1 1> <1 0 -1> 0.399 103.0
NdGaO3 (mp-3196) <1 0 0> <1 1 -1> 0.414 128.6
YAlO3 (mp-3792) <1 1 1> <0 0 1> 0.480 181.9
TbScO3 (mp-31119) <0 1 0> <0 0 1> 0.517 90.9
NdGaO3 (mp-3196) <1 0 1> <1 0 -1> 0.637 103.0
CdS (mp-672) <1 1 1> <0 0 1> 0.727 272.8
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
Ca(GaO2)2 (mp-559849) 0.6118 0.003 3
Ca(GaO2)2 (mp-7367) 0.6716 0.004 3
EuAl2O4 (mp-1019732) 0.6728 0.000 3
Sr(GaO2)2 (mp-4851) 0.6230 0.000 3
Sr(GaO2)2 (mp-554923) 0.1452 0.001 3
Ca2AlSbO5 (mvc-5272) 0.6854 0.144 4
Li2Si3NiO8 (mp-767333) 0.6251 0.083 4
LiSiBiO4 (mp-757038) 0.5924 0.028 4
LiSiBiO4 (mp-757874) 0.6904 0.020 4
Li2FeSi3O8 (mp-767963) 0.6344 0.058 4
KNa3Al4(GeO4)4 (mp-573281) 0.7207 0.332 5
KMg3AlSi3(O5F)2 (mp-684841) 0.6701 0.215 6
Na4BeAlSi4ClO12 (mp-23151) 0.7482 0.000 6
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+U
Energy Cutoff
520 eV
# of K-points
None
U Values
Fe: 5.3 eV
Pseudopotentials
VASP PAW: Sr_sv Fe_pv O
Final Energy/Atom
-6.6001 eV
Corrected Energy
-435.8070 eV
-435.8070 eV = -369.6057 eV (uncorrected energy) - 43.7280 eV (MP Advanced Correction) - 22.4733 eV (MP Anion Correction)

Detailed input parameters and outputs for all calculations


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ICSD IDs
  • 94350
Submitted by
User remarks:
  • Strontium diiron(III) oxide
  • Strontioferrite

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)