La2Zn2
La2Zn2 is a stable metallic compound formed from lanthanum and zinc that is frequently studied for its structural diversity.
About La2Zn2
La2Zn2 is a metallic intermetallic compound composed of lanthanum and zinc. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement within its chemical system.
Its metallic character suggests high electrical conductivity, making it a subject of interest for fundamental solid-state studies. With numerous reported structures across multiple databases, it is a well-documented material in the field of rare-earth intermetallics.
Key Properties
Cross-validated computational properties for La2Zn2, aggregated across 5 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 La2Zn2, 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. |
|---|---|---|---|---|---|
| Pm-3m (No. 221) | cubic | 0.00 | 0.0000 | -19.653 | 6.40 |
| P4/nmm (No. 129) | — | — | — | — | — |
| P-3m1 (No. 164) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| P21/m (No. 11) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Pmma (No. 51) | — | — | — | — | — |
| P63mc (No. 186) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
Applications
Where La2Zn2 is used.
Frequently Asked Questions
Common questions about La2Zn2, answered from cross-validated data.
What is La2Zn2?
La2Zn2 is a stable metallic compound formed from lanthanum and zinc that is frequently studied for its structural diversity.
What is La2Zn2 used for?
What is the band gap of La2Zn2?
Is La2Zn2 a metal, semiconductor, or insulator?
Is La2Zn2 thermodynamically stable?
What is the crystal structure of La2Zn2?
What is the density of La2Zn2?
How many polymorphs of La2Zn2 are known?
What elements does La2Zn2 contain?
Where does the data for La2Zn2 come from?
How It Compares
As a thermodynamically stable metallic phase, La2Zn2 serves as a foundational reference point for understanding the bonding and structural preferences of lanthanum-zinc intermetallics.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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