As24Sr32
As24Sr32 is a thermodynamically stable semiconducting binary compound formed from strontium and arsenic.
About As24Sr32
As24Sr32 is a thermodynamically stable compound composed of arsenic and strontium. As a member of the arsenide family, it exhibits semiconducting electronic characteristics that make it a subject of interest for fundamental solid-state physics and materials science research. Its presence on the convex hull indicates high thermodynamic stability, suggesting it is a robust phase under standard conditions.
With multiple reported structures across databases, this material serves as a valuable case study for understanding complex stoichiometry in binary metal-metalloid systems. Its electronic behavior is central to its potential utility in specialized semiconductor applications where specific structural arrangements of arsenic and strontium are required.
Key Properties
Cross-validated computational properties for As24Sr32, 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 As24Sr32, 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. |
|---|---|---|---|---|---|
| Pbam (No. 55) | orthorhombic | 0.86 | 0.0000 | -16.286 | 4.41 |
| Pbam (No. 55) | — | — | — | — | — |
| Pbam (No. 55) | — | — | — | — | — |
| — | — | — | — | — | 4.37 |
Applications
Where As24Sr32 is used.
Frequently Asked Questions
Common questions about As24Sr32, answered from cross-validated data.
What is As24Sr32?
As24Sr32 is a thermodynamically stable semiconducting binary compound formed from strontium and arsenic.
What is As24Sr32 used for?
What is the band gap of As24Sr32?
Is As24Sr32 a metal, semiconductor, or insulator?
Is As24Sr32 thermodynamically stable?
What is the crystal structure of As24Sr32?
What is the density of As24Sr32?
How many polymorphs of As24Sr32 are known?
What elements does As24Sr32 contain?
Where does the data for As24Sr32 come from?
How It Compares
As a binary arsenide, this compound represents a distinct stoichiometric arrangement within the broader field of strontium-arsenic materials, providing a stable reference point for researchers exploring the electronic and structural diversity of this chemical space.
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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