Ho2TeO2
Holmium tellurium oxide is a complex inorganic compound containing rare earth elements and chalcogenide components. It is primarily utilized in specialized materials research, particularly in the study of magnetic properties and solid-state chemistry.
HoOTe
Overview
Key Properties
Cross-validated computational properties for Ho2TeO2, 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.
0.58–0.72 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)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
11
3 databases, 3 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Ho2TeO2, 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. |
|---|---|---|---|---|---|
| I4/mmm (No. 139) | tetragonal | 0.72 | 0.0000 | -7.776 | 8.66 |
| P63/mmc (No. 194) | hexagonal | 0.61 | 0.0718 | -7.704 | 8.62 |
| P-3m1 (No. 164) | trigonal | 0.58 | 0.0793 | -7.697 | 8.59 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 8.62 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 8.97 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 8.72 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 8.59 |
| P63/mmc (No. 194) | — | — | — | — | — |
| P-3m1 (No. 164) | Trigonal | — | — | — | 8.84 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 8.71 |
| P-3m1 (No. 164) | — | — | — | — | — |
Uses
Applications
Where Ho2TeO2 is used.
Solid-state physics researchMagnetic materials developmentMaterials science laboratory studies
Reference
Frequently Asked Questions
Common questions about Ho2TeO2, answered from cross-validated data.
What is Ho2TeO2?
Holmium tellurium oxide is a complex inorganic compound containing rare earth elements and chalcogenide components. It is primarily utilized in specialized materials research, particularly in the study of magnetic properties and solid-state chemistry.
More questions
What is Ho2TeO2 used for?
Ho2TeO2 is used in solid-state physics research, magnetic materials development, and materials science laboratory studies.
What is the band gap of Ho2TeO2?
Ho2TeO2 has a DFT-computed band gap of 0.58–0.72 eV across 11 reported structures.
Is Ho2TeO2 a metal, semiconductor, or insulator?
With a band gap up to 0.72 eV it is a semiconductor.
Is Ho2TeO2 thermodynamically stable?
Yes — Ho2TeO2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Ho2TeO2?
The lowest-energy reported polymorph of Ho2TeO2 is tetragonal symmetry, space group I4/mmm (No. 139).
What is the density of Ho2TeO2?
The computed density of the ground-state structure of Ho2TeO2 is 8.66 g/cm³.
How many polymorphs of Ho2TeO2 are known?
11 structures of Ho2TeO2 are reported across 3 databases, spanning 3 distinct space groups.
What elements does Ho2TeO2 contain?
Ho2TeO2 contains Ho, O, and Te (3 elements).
Where does the data for Ho2TeO2 come from?
Ho2TeO2 data is cross-referenced from materials_project, mpaloe, jarvis.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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