Ho6O6Sb2
Ho6O6Sb2 is a metastable semiconducting oxide of holmium, oxygen, and antimony.
About Ho6O6Sb2
Ho6O6Sb2 is a complex ternary oxide composed of holmium, oxygen, and antimony. As a semiconducting material, it exhibits specific electronic characteristics that make it a subject of interest for researchers investigating the interplay between rare-earth elements and pnictogens in oxide lattices.
Although it is classified as a metastable compound, its existence is supported by multiple structural reports across various databases. This indicates a complex energy landscape that warrants further investigation into its synthesis pathways and potential for specialized electronic applications.
Key Properties
Cross-validated computational properties for Ho6O6Sb2, aggregated across 4 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 Ho6O6Sb2, 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. |
|---|---|---|---|---|---|
| C2/m (No. 12) | monoclinic | 0.37 | 0.0350 | -7.864 | 8.52 |
| — | — | — | — | — | 7.92 |
| C2/m (No. 12) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 2.16 |
| — | — | — | — | — | 7.92 |
| — | — | — | — | — | 7.48 |
Applications
Where Ho6O6Sb2 is used.
Frequently Asked Questions
Common questions about Ho6O6Sb2, answered from cross-validated data.
What is Ho6O6Sb2?
Ho6O6Sb2 is a metastable semiconducting oxide of holmium, oxygen, and antimony.
What is Ho6O6Sb2 used for?
What is the band gap of Ho6O6Sb2?
Is Ho6O6Sb2 a metal, semiconductor, or insulator?
Is Ho6O6Sb2 thermodynamically stable?
What is the crystal structure of Ho6O6Sb2?
What is the density of Ho6O6Sb2?
How many polymorphs of Ho6O6Sb2 are known?
What elements does Ho6O6Sb2 contain?
Where does the data for Ho6O6Sb2 come from?
How It Compares
As a unique ternary oxide, Ho6O6Sb2 represents a niche area of study within the broader landscape of rare-earth antimony oxides. Without direct structural siblings in this specific class, it serves as an important reference point for understanding how holmium-based oxides can be stabilized or manipulated to achieve semiconducting behavior.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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