Hf2Mn1Tc1
Hf2Mn1Tc1 is a semimetallic ternary intermetallic compound composed of hafnium, manganese, and technetium.

About Hf2Mn1Tc1
Hf2Mn1Tc1 is a complex ternary intermetallic compound composed of hafnium, manganese, and technetium. Its electronic structure exhibits near-zero-gap characteristics, placing it in the category of semimetallic materials that bridge the gap between conductors and semiconductors.
As a material that sits above the thermodynamic hull, Hf2Mn1Tc1 is considered metastable, which makes it a subject of significant interest for computational materials science. Its structural diversity is highlighted by numerous reported configurations, providing researchers with a broad landscape to investigate how these specific transition metals interact at the atomic scale.
Key Properties
Cross-validated computational properties for Hf2Mn1Tc1, 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 Hf2Mn1Tc1, 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 | 0.04 | 3.9227 | -29.157 | 1.01 |
| P4/mmm (No. 123) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Hf2Mn1Tc1, answered from cross-validated data.
What is Hf2Mn1Tc1?
Hf2Mn1Tc1 is a semimetallic ternary intermetallic compound composed of hafnium, manganese, and technetium.
What is the band gap of Hf2Mn1Tc1?
Is Hf2Mn1Tc1 a metal, semiconductor, or insulator?
Is Hf2Mn1Tc1 thermodynamically stable?
What is the crystal structure of Hf2Mn1Tc1?
What is the density of Hf2Mn1Tc1?
How many polymorphs of Hf2Mn1Tc1 are known?
What elements does Hf2Mn1Tc1 contain?
Where does the data for Hf2Mn1Tc1 come from?
How It Compares
As a unique ternary phase, Hf2Mn1Tc1 represents a specialized case within the broader family of hafnium-based transition metal alloys, serving as a distinct example of how technetium integration alters the electronic landscape of these metallic systems.
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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