Hf1Hg2Mg1
This is a ternary intermetallic compound composed of hafnium, mercury, and magnesium. It is primarily studied in the context of solid-state chemistry and materials science research regarding complex metallic structures.
HfHgMg
Overview
Key Properties
Cross-validated computational properties for Hf1Hg2Mg1, 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.
0.40 eV
Range across DFT structures
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.
1.856 eV/atom
Best (lowest) across sources
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.
Above hull
1 DFT source
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
27
2 databases, 16 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Hf1Hg2Mg1, 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 | 0.40 | 1.8565 | -1.338 | 0.86 |
| P4/mmm (No. 123) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
Uses
Applications
Where Hf1Hg2Mg1 is used.
Materials science researchSolid-state physics studies
Reference
Frequently Asked Questions
Common questions about Hf1Hg2Mg1, answered from cross-validated data.
What is Hf1Hg2Mg1?
This is a ternary intermetallic compound composed of hafnium, mercury, and magnesium. It is primarily studied in the context of solid-state chemistry and materials science research regarding complex metallic structures.
More questions
What is Hf1Hg2Mg1 used for?
Hf1Hg2Mg1 is used in materials science research and solid-state physics studies.
What is the band gap of Hf1Hg2Mg1?
Hf1Hg2Mg1 has a DFT-computed band gap of 0.40 eV across 27 reported structures.
Is Hf1Hg2Mg1 a metal, semiconductor, or insulator?
With a band gap up to 0.40 eV it is a semiconductor.
Is Hf1Hg2Mg1 thermodynamically stable?
Hf1Hg2Mg1 has a lowest energy above hull of 1.856 eV/atom (above hull).
What is the crystal structure of Hf1Hg2Mg1?
The lowest-energy reported polymorph of Hf1Hg2Mg1 is orthorhombic symmetry, space group Immm (No. 71).
What is the density of Hf1Hg2Mg1?
The computed density of the ground-state structure of Hf1Hg2Mg1 is 0.86 g/cm³.
How many polymorphs of Hf1Hg2Mg1 are known?
27 structures of Hf1Hg2Mg1 are reported across 2 databases, spanning 16 distinct space groups.
What elements does Hf1Hg2Mg1 contain?
Hf1Hg2Mg1 contains Hf, Hg, and Mg (3 elements).
Where does the data for Hf1Hg2Mg1 come from?
Hf1Hg2Mg1 data is cross-referenced from materials_project, aflow.
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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