LaPt2
Lanthanum digallide is an intermetallic compound composed of lanthanum and platinum. It is primarily studied in condensed matter physics for its unique electronic and magnetic properties at low temperatures.
Overview
Key Properties
Cross-validated computational properties for LaPt2, 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.
Metallic / not reported
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.
0.016 eV/atom
Best (lowest) across sources
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.
Near hull (likely stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
8
5 databases, 2 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of LaPt2. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
1.00 / 1.00
Trust tier: medium
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
0.000 eV
EAH spread across sources
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
2
jarvis, materials_project
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
All match
Crystallography
Reported Structures
Lowest-energy structures reported for LaPt2, 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. |
|---|---|---|---|---|---|
| Fd-3m (No. 227) | cubic | 0.00 | 0.0156 | -45.419 | 14.67 |
| — | — | — | — | — | 12.63 |
| No. 0 | unknown | — | — | — | 7.95 |
| Fd-3m (No. 227) | Cubic | — | — | — | 14.43 |
| Fd-3m (No. 227) | — | — | — | — | — |
| Fd-3m (No. 227) | Cubic | — | — | — | 15.12 |
| Fd-3m (No. 227) | Cubic | — | — | — | 14.68 |
| No. 0 | unknown | — | — | — | 7.99 |
Uses
Applications
Where LaPt2 is used.
Superconductivity researchSolid-state physics studiesMaterials science experimentation
Reference
Frequently Asked Questions
Common questions about LaPt2, answered from cross-validated data.
What is LaPt2?
Lanthanum digallide is an intermetallic compound composed of lanthanum and platinum. It is primarily studied in condensed matter physics for its unique electronic and magnetic properties at low temperatures.
More questions
What is LaPt2 used for?
LaPt2 is used in superconductivity research, solid-state physics studies, and materials science experimentation.
What is the band gap of LaPt2?
LaPt2 is computed to be metallic (no band gap) in the reported DFT structures.
Is LaPt2 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is LaPt2 thermodynamically stable?
LaPt2 has a lowest energy above hull of 0.016 eV/atom (near hull (likely stable)).
What is the crystal structure of LaPt2?
The lowest-energy reported polymorph of LaPt2 is cubic symmetry, space group Fd-3m (No. 227).
What is the density of LaPt2?
The computed density of the ground-state structure of LaPt2 is 14.67 g/cm³.
How many polymorphs of LaPt2 are known?
8 structures of LaPt2 are reported across 5 databases, spanning 2 distinct space groups.
What elements does LaPt2 contain?
LaPt2 contains La and Pt (2 elements).
Where does the data for LaPt2 come from?
LaPt2 data is cross-referenced from materials_project, omat24, cod, mpaloe, jarvis.
Explore
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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