LaTe2
Lanthanum ditelluride is a metallic compound belonging to the rare-earth telluride family. It is primarily studied in condensed matter physics for its complex electronic properties and structural transitions.
LaTe
Overview
Key Properties
Cross-validated computational properties for LaTe2, aggregated across 6 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.
0.06 eV
Range across DFT structures
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.
0.000 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.
On hull (stable)
4 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
44
6 databases, 11 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of LaTe2. 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: high
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.
3
jarvis, materials_project, nomad
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 LaTe2, 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. |
|---|---|---|---|---|---|
| P4bm (No. 100) | tetragonal | 0.00 | 0.0000 | -5.424 | 6.75 |
| Pba2 (No. 32) | orthorhombic | 0.06 | 0.0003 | -28.488 | 6.71 |
| P4bm (No. 100) | tetragonal | 0.00 | 0.0004 | -5.423 | 6.75 |
| P4bm (No. 100) | tetragonal | 0.00 | 0.0004 | -5.423 | 6.75 |
| Pma2 (No. 28) | orthorhombic | 0.00 | 0.0011 | -5.422 | 6.71 |
| P4/nmm (No. 129) | tetragonal | 0.00 | 0.0029 | -5.421 | 6.75 |
| P21/m (No. 11) | Monoclinic | — | — | — | 5.98 |
| I4/mmm (No. 139) | — | — | — | — | — |
| P-1 (No. 2) | Triclinic | — | — | — | 5.54 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.53 |
| P21/m (No. 11) | Monoclinic | — | — | — | 5.63 |
| C2/c (No. 15) | Monoclinic | — | — | — | 7.56 |
Uses
Applications
Where LaTe2 is used.
Condensed matter physics researchStudy of charge density wavesElectronic material characterization
Reference
Frequently Asked Questions
Common questions about LaTe2, answered from cross-validated data.
What is LaTe2?
Lanthanum ditelluride is a metallic compound belonging to the rare-earth telluride family. It is primarily studied in condensed matter physics for its complex electronic properties and structural transitions.
More questions
What is LaTe2 used for?
LaTe2 is used in condensed matter physics research, study of charge density waves, and electronic material characterization.
What is the band gap of LaTe2?
LaTe2 has a DFT-computed band gap of 0.06 eV across 44 reported structures.
Is LaTe2 a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is LaTe2 thermodynamically stable?
Yes — LaTe2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of LaTe2?
The lowest-energy reported polymorph of LaTe2 is tetragonal symmetry, space group P4bm (No. 100).
What is the density of LaTe2?
The computed density of the ground-state structure of LaTe2 is 6.75 g/cm³.
How many polymorphs of LaTe2 are known?
44 structures of LaTe2 are reported across 6 databases, spanning 11 distinct space groups.
What elements does LaTe2 contain?
LaTe2 contains La and Te (2 elements).
Where does the data for LaTe2 come from?
LaTe2 data is cross-referenced from materials_project, mpaloe, nomad, cod, omat24.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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