Hg1Sn1Y2
Hg1Sn1Y2 is a semiconducting ternary compound containing mercury, tin, and yttrium that is primarily studied for its structural diversity and theoretical stability profiles.
About Hg1Sn1Y2
Hg1Sn1Y2 is a complex ternary compound composed of mercury, tin, and yttrium. As a semiconducting material, it represents an interesting subject for studying electronic behavior in multi-element systems where heavy metals and rare-earth components interact within a crystalline lattice.
While this compound has been documented across numerous structural configurations in computational databases, it is characterized as being above the thermodynamic hull. This suggests that the phase may be metastable or difficult to synthesize under standard conditions, positioning it as a focus for theoretical exploration rather than immediate industrial deployment.
Key Properties
Cross-validated computational properties for Hg1Sn1Y2, 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 Hg1Sn1Y2, 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 | 0.13 | 2.3247 | -2.632 | 0.61 |
| Pmmm (No. 47) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Hg1Sn1Y2, answered from cross-validated data.
What is Hg1Sn1Y2?
Hg1Sn1Y2 is a semiconducting ternary compound containing mercury, tin, and yttrium that is primarily studied for its structural diversity and theoretical stability profiles.
What is the band gap of Hg1Sn1Y2?
Is Hg1Sn1Y2 a metal, semiconductor, or insulator?
Is Hg1Sn1Y2 thermodynamically stable?
What is the crystal structure of Hg1Sn1Y2?
What is the density of Hg1Sn1Y2?
How many polymorphs of Hg1Sn1Y2 are known?
What elements does Hg1Sn1Y2 contain?
Where does the data for Hg1Sn1Y2 come from?
How It Compares
As a unique ternary phase, Hg1Sn1Y2 occupies a specialized niche in materials science. Without direct structural siblings in this specific chemical family, it serves as a critical data point for understanding the stability limits of mercury-tin-yttrium combinations and the electronic trends that emerge in such complex, non-equilibrium 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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