LaS2
LaS2 is a thermodynamically stable semiconducting compound composed of lanthanum and sulfur.
About LaS2
LaS2 is a semiconducting lanthanum sulfide that occupies a stable position on the thermodynamic convex hull. Its structural versatility is evidenced by a significant number of reported configurations across major materials databases, making it a subject of interest for fundamental solid-state studies.
As a stable binary compound, it serves as a foundational material for investigating the electronic behavior of rare-earth chalcogenides. Its semiconducting nature and structural complexity provide a platform for exploring how lanthanum and sulfur interactions influence macroscopic physical properties.
Key Properties
Cross-validated computational properties for LaS2, 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 LaS2 is used.
Frequently Asked Questions
Common questions about LaS2, answered from cross-validated data.
What is LaS2?
LaS2 is a thermodynamically stable semiconducting compound composed of lanthanum and sulfur.
What is LaS2 used for?
What is the band gap of LaS2?
Is LaS2 a metal, semiconductor, or insulator?
Is LaS2 thermodynamically stable?
How many polymorphs of LaS2 are known?
What elements does LaS2 contain?
Where does the data for LaS2 come from?
How It Compares
As a distinct lanthanum-based sulfide, LaS2 represents a stable and well-documented phase within the broader family of rare-earth chalcogenides, serving as a primary reference point for structural and electronic characterization in this material class.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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