Au2Cu1Ga1
Au2Cu1Ga1 is a semiconducting ternary intermetallic material composed of gold, copper, and gallium that often exists in metastable structural states.
About Au2Cu1Ga1
Au2Cu1Ga1 is a complex ternary intermetallic compound composed of gold, copper, and gallium. Its electronic character is defined as semiconducting, marking it as an interesting subject for studies into how transition metals and post-transition elements interact to influence charge transport properties.
While this material exhibits a diverse range of reported structural configurations, it is categorized as being above the thermodynamic hull. This suggests that it may exist as a metastable phase, requiring specific synthesis conditions to stabilize its crystalline arrangement for experimental investigation.
Key Properties
Cross-validated computational properties for Au2Cu1Ga1, 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 Au2Cu1Ga1, 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 | 1.22 | 1.1382 | -2.419 | 1.20 |
| Immm (No. 71) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
Applications
Where Au2Cu1Ga1 is used.
Frequently Asked Questions
Common questions about Au2Cu1Ga1, answered from cross-validated data.
What is Au2Cu1Ga1?
Au2Cu1Ga1 is a semiconducting ternary intermetallic material composed of gold, copper, and gallium that often exists in metastable structural states.
What is Au2Cu1Ga1 used for?
What is the band gap of Au2Cu1Ga1?
Is Au2Cu1Ga1 a metal, semiconductor, or insulator?
Is Au2Cu1Ga1 thermodynamically stable?
What is the crystal structure of Au2Cu1Ga1?
What is the density of Au2Cu1Ga1?
How many polymorphs of Au2Cu1Ga1 are known?
What elements does Au2Cu1Ga1 contain?
Where does the data for Au2Cu1Ga1 come from?
How It Compares
As a unique ternary phase, Au2Cu1Ga1 serves as a specialized example of how gold-rich systems can deviate from simple metallic behavior. Unlike more stable, highly symmetric intermetallics, this compound represents a more complex structural landscape where the interplay of its constituent elements leads to a semiconducting electronic profile.
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).
Analyze Au2Cu1Ga1 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →