Ba1Mg2Sr1
Ba1Mg2Sr1 is a metastable, semimetallic intermetallic compound formed from barium, magnesium, and strontium.
About Ba1Mg2Sr1
Ba1Mg2Sr1 is an intermetallic compound composed of barium, magnesium, and strontium. It exhibits a semimetallic electronic character, placing it in a regime where conductive properties are highly sensitive to its precise atomic arrangement.
Due to its position above the thermodynamic hull, this material is considered metastable. Its existence across multiple reported structural configurations highlights the complexity of phase formation in alkaline-earth metal alloys.
Key Properties
Cross-validated computational properties for Ba1Mg2Sr1, aggregated across 2 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 Ba1Mg2Sr1, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.01 | 1.4353 | -0.341 | 0.21 |
| P4/mmm (No. 123) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Ba1Mg2Sr1, answered from cross-validated data.
What is Ba1Mg2Sr1?
Ba1Mg2Sr1 is a metastable, semimetallic intermetallic compound formed from barium, magnesium, and strontium.
What is the band gap of Ba1Mg2Sr1?
Is Ba1Mg2Sr1 a metal, semiconductor, or insulator?
Is Ba1Mg2Sr1 thermodynamically stable?
What is the crystal structure of Ba1Mg2Sr1?
What is the density of Ba1Mg2Sr1?
How many polymorphs of Ba1Mg2Sr1 are known?
What elements does Ba1Mg2Sr1 contain?
Where does the data for Ba1Mg2Sr1 come from?
How It Compares
As a unique ternary intermetallic phase, Ba1Mg2Sr1 represents a specialized study in the alloying behavior of heavy alkaline-earth metals, serving as a point of reference for understanding structural diversity in systems where thermodynamic stability is limited.
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).
Analyze Ba1Mg2Sr1 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →