Fe2Ge1Ti1
Fe2Ge1Ti1 is a stable, semiconducting Heusler alloy used in the study of functional intermetallic materials.

About Fe2Ge1Ti1
Fe2Ge1Ti1 is a distinct member of the Heusler alloy family, characterized by its semiconducting electronic nature. Its position on the thermodynamic convex hull highlights its structural stability, making it a reliable candidate for fundamental materials research and device integration.
As a ternary intermetallic compound, it plays a vital role in the study of tunable electronic properties within the Heusler class. Its structural integrity supports its use in exploring high-performance functional materials where stable electronic behavior is essential.
Key Properties
Cross-validated computational properties for Fe2Ge1Ti1, 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 Fe2Ge1Ti1, 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 | 0.17 | 0.0000 | -7.844 | 8.17 |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| Pm (No. 6) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
Applications
Where Fe2Ge1Ti1 is used.
Frequently Asked Questions
Common questions about Fe2Ge1Ti1, answered from cross-validated data.
What is Fe2Ge1Ti1?
Fe2Ge1Ti1 is a stable, semiconducting Heusler alloy used in the study of functional intermetallic materials.
What is Fe2Ge1Ti1 used for?
What is the band gap of Fe2Ge1Ti1?
Is Fe2Ge1Ti1 a metal, semiconductor, or insulator?
Is Fe2Ge1Ti1 thermodynamically stable?
What is the crystal structure of Fe2Ge1Ti1?
What is the density of Fe2Ge1Ti1?
How many polymorphs of Fe2Ge1Ti1 are known?
What elements does Fe2Ge1Ti1 contain?
Where does the data for Fe2Ge1Ti1 come from?
How It Compares
Within the heusler alloys class.
Within the diverse landscape of Heusler alloys, Fe2Ge1Ti1 stands out for its specific semiconducting character compared to more metallic or magnetic siblings like Fe2Sn1Ti1. While many compounds in this class are investigated for their metallic conductivity or complex magnetism, Fe2Ge1Ti1 offers a unique electronic profile that distinguishes it from the broader group of transition metal-based alloys.
Related Compounds
Other Heusler Alloys in the database.
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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