SrTe
strontium telluride
Strontium telluride is a stable, semiconducting binary compound used in materials science research.
About strontium telluride
Strontium telluride is a binary inorganic compound composed of strontium and tellurium. As a thermodynamically stable material residing on the convex hull, it exhibits a robust structural framework that has been extensively documented across multiple crystallographic databases.
This material functions as a semiconductor, making it a subject of interest for specialized electronic and optoelectronic research. Its stable nature provides a reliable foundation for exploring the fundamental physics of telluride-based systems in various solid-state configurations.
Key Properties
Cross-validated computational properties for strontium telluride, aggregated across 5 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of SrTe. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for SrTe, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 1.76 | 0.0000 | -22.299 | 4.73 |
| Pm-3m (No. 221) | cubic | 0.47 | 0.2415 | -22.058 | 5.23 |
| F-43m (No. 216) | — | 2.65 | — | — | — |
| No. 0 | unknown | — | — | — | 1.32 |
| P21/m (No. 11) | Monoclinic | — | — | — | 4.80 |
| Pm-3m (No. 221) | — | — | — | — | — |
| Cm (No. 8) | Monoclinic | — | — | — | 4.17 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 3.74 |
| Cm (No. 8) | Monoclinic | — | — | — | 4.25 |
| Pm (No. 6) | Monoclinic | — | — | — | 4.44 |
| Cm (No. 8) | Monoclinic | — | — | — | 4.01 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 3.62 |
Applications
Where strontium telluride is used.
Frequently Asked Questions
Common questions about strontium telluride, answered from cross-validated data.
What is SrTe?
Strontium telluride is a stable, semiconducting binary compound used in materials science research.
What is SrTe used for?
What is the band gap of SrTe?
Is SrTe a metal, semiconductor, or insulator?
Is SrTe thermodynamically stable?
What is the crystal structure of SrTe?
What is the density of SrTe?
How many polymorphs of SrTe are known?
What elements does SrTe contain?
Where does the data for SrTe come from?
How It Compares
As a standalone binary telluride, strontium telluride serves as a foundational reference point for understanding the structural and electronic behavior of alkaline earth chalcogenides within its class.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
Analyze SrTe in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →