BiIn2Na
BiIn2Na is a semiconducting intermetallic compound containing bismuth, indium, and sodium that is currently recognized as a metastable phase.
About BiIn2Na
BiIn2Na is a complex intermetallic compound composed of bismuth, indium, and sodium. As a semiconducting material, it represents a specialized electronic configuration that distinguishes it from typical metallic alloys, making it a subject of interest for fundamental solid-state research.
Despite its existence in multiple structural databases, the compound is characterized by its position above the thermodynamic hull. This suggests it may be metastable or difficult to synthesize under standard conditions, highlighting the importance of precise processing techniques in stabilizing such phases.
Key Properties
Cross-validated computational properties for BiIn2Na, 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.
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.
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.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for BiIn2Na, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 1.24 | 0.8640 | -1.965 | 0.60 |
| — | — | — | — | — | 6.86 |
| — | — | — | — | — | 5.64 |
| — | — | — | — | — | — |
| — | — | — | — | — | — |
Frequently Asked Questions
Common questions about BiIn2Na, answered from cross-validated data.
What is BiIn2Na?
BiIn2Na is a semiconducting intermetallic compound containing bismuth, indium, and sodium that is currently recognized as a metastable phase.
What is the band gap of BiIn2Na?
Is BiIn2Na a metal, semiconductor, or insulator?
Is BiIn2Na thermodynamically stable?
What is the crystal structure of BiIn2Na?
What is the density of BiIn2Na?
How many polymorphs of BiIn2Na are known?
What elements does BiIn2Na contain?
Where does the data for BiIn2Na come from?
How It Compares
As a unique ternary phase, BiIn2Na occupies a niche position in materials science where its semiconducting nature sets it apart from more common metallic conductors found in similar chemical spaces.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- alexandria — Data from alexandria.
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