Ge4La4O14
Ge4La4O14 is a thermodynamically stable, insulating oxide compound containing germanium and lanthanum.
About Ge4La4O14
Ge4La4O14 is a complex oxide compound composed of germanium, lanthanum, and oxygen. As a thermodynamically stable material located on the convex hull, it exhibits robust structural integrity that makes it a subject of interest for fundamental materials research.
Characterized as a wide-band-gap insulator, this compound possesses electronic properties typical of stable oxide frameworks. Its existence across multiple structural databases highlights its significance as a well-defined crystalline phase within the broader landscape of lanthanum-germanium oxides.
Key Properties
Cross-validated computational properties for Ge4La4O14, aggregated across 3 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 Ge4La4O14, 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. |
|---|---|---|---|---|---|
| P1 (No. 1) | triclinic | 3.71 | 0.0000 | -7.923 | 5.66 |
| P-1 (No. 2) | triclinic | 3.55 | 0.0003 | -7.923 | 5.60 |
| P1 (No. 1) | — | — | — | — | — |
| — | — | — | — | — | 4.91 |
Applications
Where Ge4La4O14 is used.
Frequently Asked Questions
Common questions about Ge4La4O14, answered from cross-validated data.
What is Ge4La4O14?
Ge4La4O14 is a thermodynamically stable, insulating oxide compound containing germanium and lanthanum.
What is Ge4La4O14 used for?
What is the band gap of Ge4La4O14?
Is Ge4La4O14 a metal, semiconductor, or insulator?
Is Ge4La4O14 thermodynamically stable?
What is the crystal structure of Ge4La4O14?
What is the density of Ge4La4O14?
How many polymorphs of Ge4La4O14 are known?
What elements does Ge4La4O14 contain?
Where does the data for Ge4La4O14 come from?
How It Compares
As a stable oxide phase, Ge4La4O14 serves as a benchmark for understanding the structural diversity and thermodynamic landscape of rare-earth germanates. It occupies a distinct position in the material space, offering a reliable crystalline framework that contrasts with less stable or metastable phases in this chemical family.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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