Al1Mn1Ti2
Al1Mn1Ti2 is a metastable, semimetallic intermetallic compound composed of aluminum, manganese, and titanium.
About Al1Mn1Ti2
Al1Mn1Ti2 is a complex intermetallic compound composed of aluminum, manganese, and titanium. It exhibits a semimetallic electronic character, placing it in a unique position between traditional insulators and conductors.
As a metastable phase, this material represents a specific structural arrangement within the ternary system. Its existence across multiple reported structures highlights its significance in fundamental materials research and crystallographic studies.
Key Properties
Cross-validated computational properties for Al1Mn1Ti2, 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 Al1Mn1Ti2, 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. |
|---|---|---|---|---|---|
| F-43m (No. 216) | cubic | 0.05 | 0.0768 | -7.425 | 4.84 |
| Imm2 (No. 44) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Al1Mn1Ti2, answered from cross-validated data.
What is Al1Mn1Ti2?
Al1Mn1Ti2 is a metastable, semimetallic intermetallic compound composed of aluminum, manganese, and titanium.
What is the band gap of Al1Mn1Ti2?
Is Al1Mn1Ti2 a metal, semiconductor, or insulator?
Is Al1Mn1Ti2 thermodynamically stable?
What is the crystal structure of Al1Mn1Ti2?
What is the density of Al1Mn1Ti2?
How many polymorphs of Al1Mn1Ti2 are known?
What elements does Al1Mn1Ti2 contain?
Where does the data for Al1Mn1Ti2 come from?
How It Compares
As a unique ternary intermetallic, Al1Mn1Ti2 serves as a specialized example of complex metal-alloy phase formation. Without direct structural siblings in this specific class, it stands as a distinct case study for understanding how the interplay of transition metals and aluminum can stabilize metastable semimetallic configurations.
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).
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