Sr4Bi2O
This compound is a complex oxide containing strontium and bismuth. It is primarily studied by researchers investigating unconventional electronic properties and potential superconductivity in bismuth-based materials.
BiOSr
Overview
Key Properties
Cross-validated computational properties for Sr4Bi2O, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
0.63 eV
Range across DFT structures
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
0.000 eV/atom
Best (lowest) across sources
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
6
3 databases, 2 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Sr4Bi2O, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| I4mm (No. 107) | tetragonal | 0.60 | 0.0000 | -4.350 | 5.83 |
| I4/mmm (No. 139) | tetragonal | 0.63 | 0.0021 | -4.348 | 5.84 |
| I4mm (No. 107) | Tetragonal | — | — | — | 5.76 |
| I4mm (No. 107) | Tetragonal | — | — | — | 5.85 |
| I4mm (No. 107) | Tetragonal | — | — | — | 5.84 |
| I4/mmm (No. 139) | — | — | — | — | — |
Uses
Applications
Where Sr4Bi2O is used.
Condensed matter physics researchSuperconductivity studiesMaterials science exploration
Reference
Frequently Asked Questions
Common questions about Sr4Bi2O, answered from cross-validated data.
What is Sr4Bi2O?
This compound is a complex oxide containing strontium and bismuth. It is primarily studied by researchers investigating unconventional electronic properties and potential superconductivity in bismuth-based materials.
More questions
What is Sr4Bi2O used for?
Sr4Bi2O is used in condensed matter physics research, superconductivity studies, and materials science exploration.
What is the band gap of Sr4Bi2O?
Sr4Bi2O has a DFT-computed band gap of 0.63 eV across 6 reported structures.
Is Sr4Bi2O a metal, semiconductor, or insulator?
With a band gap up to 0.63 eV it is a semiconductor.
Is Sr4Bi2O thermodynamically stable?
Yes — Sr4Bi2O sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Sr4Bi2O?
The lowest-energy reported polymorph of Sr4Bi2O is tetragonal symmetry, space group I4mm (No. 107).
What is the density of Sr4Bi2O?
The computed density of the ground-state structure of Sr4Bi2O is 5.83 g/cm³.
How many polymorphs of Sr4Bi2O are known?
6 structures of Sr4Bi2O are reported across 3 databases, spanning 2 distinct space groups.
What elements does Sr4Bi2O contain?
Sr4Bi2O contains Bi, O, and Sr (3 elements).
Where does the data for Sr4Bi2O come from?
Sr4Bi2O data is cross-referenced from materials_project, mpaloe, jarvis.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
Analyze Sr4Bi2O in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →