Be2MgPt
Be2MgPt is a semiconducting ternary alloy composed of beryllium, magnesium, and platinum that exists in a metastable state.
About Be2MgPt
Be2MgPt is a ternary intermetallic compound categorized within the platinum-group alloy catalysts. Characterized by semiconducting electronic behavior, this material represents a complex arrangement of beryllium, magnesium, and platinum atoms that challenges traditional metallic bonding models.
Due to its position above the thermodynamic hull, Be2MgPt is considered a metastable phase. Its existence across multiple reported structures highlights the structural diversity present in these specialized platinum-based systems, making it a subject of interest for researchers studying phase stability in complex alloys.
Key Properties
Cross-validated computational properties for Be2MgPt, 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 Be2MgPt, 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 | 1.12 | 2.3153 | -2.033 | 0.50 |
| I-4m2 (No. 119) | — | — | — | — | — |
| — | — | — | — | — | 7.04 |
Applications
Where Be2MgPt is used.
Frequently Asked Questions
Common questions about Be2MgPt, answered from cross-validated data.
What is Be2MgPt?
Be2MgPt is a semiconducting ternary alloy composed of beryllium, magnesium, and platinum that exists in a metastable state.
What is Be2MgPt used for?
What is the band gap of Be2MgPt?
Is Be2MgPt a metal, semiconductor, or insulator?
Is Be2MgPt thermodynamically stable?
What is the crystal structure of Be2MgPt?
What is the density of Be2MgPt?
How many polymorphs of Be2MgPt are known?
What elements does Be2MgPt contain?
Where does the data for Be2MgPt come from?
How It Compares
Within the platinum-group alloy catalysts class.
Unlike more stable or common platinum-group alloys such as As2Pt or GeRu, Be2MgPt occupies a less thermodynamically favorable state. While many members of this class exhibit robust metallic properties, Be2MgPt stands out for its semiconducting nature, placing it in a distinct niche compared to the more conventional metallic conductors within the group.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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