ErAsS
ErAsS is a thermodynamically stable semiconducting compound consisting of erbium, arsenic, and sulfur.
About ErAsS
ErAsS is a ternary compound composed of erbium, arsenic, and sulfur. As a thermodynamically stable material located on the convex hull, it represents a robust phase within its chemical system, offering consistent structural integrity for potential research applications. Its electronic character is defined as semiconducting, which positions it as a candidate for specialized electronic or optoelectronic investigations. The material has been documented across multiple structural databases, reflecting a significant level of interest in its crystallographic configurations. This data richness supports its role as a stable subject for fundamental studies in solid-state chemistry and materials science.
Key Properties
Cross-validated computational properties for ErAsS, 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.
Applications
Where ErAsS is used.
Frequently Asked Questions
Common questions about ErAsS, answered from cross-validated data.
What is ErAsS?
ErAsS is a thermodynamically stable semiconducting compound consisting of erbium, arsenic, and sulfur.
What is ErAsS used for?
What is the band gap of ErAsS?
Is ErAsS a metal, semiconductor, or insulator?
Is ErAsS thermodynamically stable?
How many polymorphs of ErAsS are known?
What elements does ErAsS contain?
Where does the data for ErAsS come from?
How It Compares
As a stable ternary phase, ErAsS serves as a foundational example of how rare-earth elements can be integrated with pnictogens and chalcogens to form distinct semiconducting materials. Without direct structural siblings in this specific grouping, it stands as a unique reference point for understanding the stability and electronic behavior of erbium-based ternary systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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