Ag1Cd2La1
Ag1Cd2La1 is a semimetallic ternary intermetallic compound containing silver, cadmium, and lanthanum that exhibits complex structural behavior.
About Ag1Cd2La1
Ag1Cd2La1 is a complex ternary intermetallic compound composed of silver, cadmium, and lanthanum. Its electronic character is defined as a near-zero-gap semimetal, placing it in a unique position between metallic conductors and semiconducting materials.
This compound exists in a metastable state, as it is positioned above the thermodynamic hull. Despite its instability, it remains a subject of interest for researchers investigating the structural diversity of ternary systems, with numerous reported structural variations documented in materials databases.
Key Properties
Cross-validated computational properties for Ag1Cd2La1, 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 Ag1Cd2La1, 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 | 0.10 | 1.6966 | -1.013 | 0.58 |
| Pmm2 (No. 25) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
Applications
Where Ag1Cd2La1 is used.
Frequently Asked Questions
Common questions about Ag1Cd2La1, answered from cross-validated data.
What is Ag1Cd2La1?
Ag1Cd2La1 is a semimetallic ternary intermetallic compound containing silver, cadmium, and lanthanum that exhibits complex structural behavior.
What is Ag1Cd2La1 used for?
What is the band gap of Ag1Cd2La1?
Is Ag1Cd2La1 a metal, semiconductor, or insulator?
Is Ag1Cd2La1 thermodynamically stable?
What is the crystal structure of Ag1Cd2La1?
What is the density of Ag1Cd2La1?
How many polymorphs of Ag1Cd2La1 are known?
What elements does Ag1Cd2La1 contain?
Where does the data for Ag1Cd2La1 come from?
How It Compares
As a unique ternary intermetallic, Ag1Cd2La1 serves as a distinct case study in the structural complexity of lanthanum-based alloys. Without direct structural siblings in this specific grouping, it highlights the challenges of synthesizing and stabilizing complex phases that deviate from the thermodynamic ground state.
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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