Al2Cd2La6S14
Al2Cd2La6S14 is a metastable semiconducting quaternary sulfide containing aluminum, cadmium, lanthanum, and sulfur.
About Al2Cd2La6S14
Al2Cd2La6S14 is a complex quaternary sulfide compound composed of aluminum, cadmium, lanthanum, and sulfur. As a semiconducting material, it represents a specialized niche in inorganic chemistry, characterized by its distinct electronic behavior and structural arrangement within the sulfide family.
This compound is currently considered metastable, reflecting the delicate balance of its atomic constituents. While it remains a subject of ongoing investigation across multiple structural databases, its unique composition makes it a significant candidate for researchers exploring new functional materials with tunable electronic properties.
Key Properties
Cross-validated computational properties for Al2Cd2La6S14, 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 Al2Cd2La6S14, 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. |
|---|---|---|---|---|---|
| P63 (No. 173) | hexagonal | 2.19 | 0.0269 | -6.023 | 4.58 |
| P63 (No. 173) | — | — | — | — | — |
| — | — | — | — | — | 4.49 |
Applications
Where Al2Cd2La6S14 is used.
Frequently Asked Questions
Common questions about Al2Cd2La6S14, answered from cross-validated data.
What is Al2Cd2La6S14?
Al2Cd2La6S14 is a metastable semiconducting quaternary sulfide containing aluminum, cadmium, lanthanum, and sulfur.
What is Al2Cd2La6S14 used for?
What is the band gap of Al2Cd2La6S14?
Is Al2Cd2La6S14 a metal, semiconductor, or insulator?
Is Al2Cd2La6S14 thermodynamically stable?
What is the crystal structure of Al2Cd2La6S14?
What is the density of Al2Cd2La6S14?
How many polymorphs of Al2Cd2La6S14 are known?
What elements does Al2Cd2La6S14 contain?
Where does the data for Al2Cd2La6S14 come from?
How It Compares
As a quaternary sulfide, Al2Cd2La6S14 occupies a unique position in materials science research. Unlike more common binary or ternary sulfides, this complex structure highlights the potential for intricate atomic ordering within multi-element systems, serving as an important reference point for future studies into the stability and electronic performance of complex lanthanum-based chalcogenides.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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