La1Sr1Zn2
La1Sr1Zn2 is a semimetallic ternary compound composed of lanthanum, strontium, and zinc that features a high degree of structural diversity.
About La1Sr1Zn2
La1Sr1Zn2 is a complex ternary intermetallic compound composed of lanthanum, strontium, and zinc. Its electronic structure exhibits near-zero-gap characteristics, placing it in the semimetallic regime where charge carriers behave with distinct mobility profiles.
This material is recognized for its structural complexity, with numerous reported configurations across crystallographic databases. While it currently sits above the thermodynamic hull, its diverse structural landscape makes it a subject of interest for fundamental studies in solid-state chemistry and phase stability.
Key Properties
Cross-validated computational properties for La1Sr1Zn2, 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 La1Sr1Zn2, 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 | 0.09 | 1.8503 | -14.127 | 0.49 |
| P4mm (No. 99) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
Applications
Where La1Sr1Zn2 is used.
Frequently Asked Questions
Common questions about La1Sr1Zn2, answered from cross-validated data.
What is La1Sr1Zn2?
La1Sr1Zn2 is a semimetallic ternary compound composed of lanthanum, strontium, and zinc that features a high degree of structural diversity.
What is La1Sr1Zn2 used for?
What is the band gap of La1Sr1Zn2?
Is La1Sr1Zn2 a metal, semiconductor, or insulator?
Is La1Sr1Zn2 thermodynamically stable?
What is the crystal structure of La1Sr1Zn2?
What is the density of La1Sr1Zn2?
How many polymorphs of La1Sr1Zn2 are known?
What elements does La1Sr1Zn2 contain?
Where does the data for La1Sr1Zn2 come from?
How It Compares
As a unique ternary intermetallic, La1Sr1Zn2 serves as a specialized case study within its chemical family, highlighting the challenges of stabilizing complex lanthanum-strontium-zinc phases compared to simpler binary or elemental 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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