GdNa5O4
GdNa5O4 is a metastable, semiconducting oxide composed of gadolinium, sodium, and oxygen.
About GdNa5O4
GdNa5O4 is a complex oxide featuring gadolinium, sodium, and oxygen. As a semiconducting material, it represents a specialized composition that has been documented across multiple structural configurations in materials databases.
Its metastable nature makes it a subject of interest for researchers investigating phase stability and synthesis pathways. The compound serves as a unique entry point for understanding how rare-earth elements integrate into alkali-rich oxide frameworks.
Key Properties
Cross-validated computational properties for GdNa5O4, 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 GdNa5O4, 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. |
|---|---|---|---|---|---|
| Pbca (No. 61) | orthorhombic | 2.58 | 0.0256 | -6.117 | 3.39 |
| Pmmn (No. 59) | orthorhombic | 2.36 | 0.0403 | -6.103 | 3.32 |
| P42/nmc (No. 137) | tetragonal | 1.96 | 0.0652 | -6.078 | 3.54 |
| Pmn21 (No. 31) | orthorhombic | 2.06 | 0.0691 | -6.074 | 3.52 |
| Pbca (No. 61) | orthorhombic | 1.90 | 0.0920 | -6.051 | 3.36 |
| Pmn21 (No. 31) | — | — | — | — | — |
| — | — | — | — | — | — |
Frequently Asked Questions
Common questions about GdNa5O4, answered from cross-validated data.
What is GdNa5O4?
GdNa5O4 is a metastable, semiconducting oxide composed of gadolinium, sodium, and oxygen.
What is the band gap of GdNa5O4?
Is GdNa5O4 a metal, semiconductor, or insulator?
Is GdNa5O4 thermodynamically stable?
What is the crystal structure of GdNa5O4?
What is the density of GdNa5O4?
How many polymorphs of GdNa5O4 are known?
What elements does GdNa5O4 contain?
Where does the data for GdNa5O4 come from?
How It Compares
As a singular entry in this specific compositional space, GdNa5O4 serves as a benchmark for understanding the structural diversity of gadolinium-sodium oxides. It highlights the complex interplay between rare-earth coordination and alkali-metal environments in metastable oxide systems.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- alexandria — Data from alexandria.
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