AlNaTe2
AlNaTe2 is a semiconducting ternary telluride compound that is considered thermodynamically stable and a candidate for experimental synthesis.
About AlNaTe2
AlNaTe2 is a ternary compound composed of aluminum, sodium, and tellurium. As a semiconducting material, it exhibits electronic properties that are of significant interest for researchers exploring new functional inorganic solids. Its position near the thermodynamic hull suggests that it is a stable phase capable of being synthesized under controlled laboratory conditions. The existence of multiple reported structures across various databases highlights its structural versatility and potential for further investigation in materials science. This compound serves as a valuable entry in the study of complex chalcogenides, where the interplay between alkali metals and p-block elements often leads to unique electronic behaviors. By providing a stable framework for potential applications, AlNaTe2 contributes to the broader understanding of ternary telluride systems and their structural diversity.
Key Properties
Cross-validated computational properties for AlNaTe2, 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 AlNaTe2, 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. |
|---|---|---|---|---|---|
| I4/mcm (No. 140) | tetragonal | 1.29 | 0.0060 | -16.106 | 4.33 |
| — | — | — | — | — | 4.20 |
| — | — | — | — | — | 4.57 |
| — | — | — | — | — | 4.56 |
| F-43m (No. 216) | — | — | — | — | — |
Applications
Where AlNaTe2 is used.
Frequently Asked Questions
Common questions about AlNaTe2, answered from cross-validated data.
What is AlNaTe2?
AlNaTe2 is a semiconducting ternary telluride compound that is considered thermodynamically stable and a candidate for experimental synthesis.
What is AlNaTe2 used for?
What is the band gap of AlNaTe2?
Is AlNaTe2 a metal, semiconductor, or insulator?
Is AlNaTe2 thermodynamically stable?
What is the crystal structure of AlNaTe2?
What is the density of AlNaTe2?
How many polymorphs of AlNaTe2 are known?
What elements does AlNaTe2 contain?
Where does the data for AlNaTe2 come from?
How It Compares
As a member of the ternary telluride class, AlNaTe2 serves as a foundational example of how aluminum and sodium can be integrated into a stable lattice with tellurium. While many complex chalcogenides are difficult to stabilize, this compound occupies a favorable energetic position that distinguishes it from more metastable or highly reactive phases in the broader family of alkali-metal-based semiconductors.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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