In2Na1Sn1
In2Na1Sn1 is a semimetallic ternary intermetallic compound composed of indium, sodium, and tin.
About In2Na1Sn1
In2Na1Sn1 is a ternary intermetallic compound composed of indium, sodium, and tin. Its electronic character is defined as near-zero-gap, placing it in the category of semimetallic materials that exhibit unique conductive behaviors near the Fermi level.
Due to its position above the thermodynamic hull, this compound is considered metastable. While it has been identified across multiple structural configurations in computational databases, its synthesis and long-term stability remain subjects of interest for researchers studying complex metal alloys.
Key Properties
Cross-validated computational properties for In2Na1Sn1, aggregated across 2 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 In2Na1Sn1, 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 | 0.09 | 1.0390 | -17.513 | 0.49 |
| P4/mmm (No. 123) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Frequently Asked Questions
Common questions about In2Na1Sn1, answered from cross-validated data.
What is In2Na1Sn1?
In2Na1Sn1 is a semimetallic ternary intermetallic compound composed of indium, sodium, and tin.
What is the band gap of In2Na1Sn1?
Is In2Na1Sn1 a metal, semiconductor, or insulator?
Is In2Na1Sn1 thermodynamically stable?
What is the crystal structure of In2Na1Sn1?
What is the density of In2Na1Sn1?
How many polymorphs of In2Na1Sn1 are known?
What elements does In2Na1Sn1 contain?
Where does the data for In2Na1Sn1 come from?
How It Compares
As a ternary intermetallic phase, In2Na1Sn1 represents a specific point in the compositional space of indium-sodium-tin alloys. Without direct structural siblings in this specific class, it serves as a distinct example of how these elements combine to form semimetallic electronic structures that deviate from simple metallic bonding.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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