CeEr3
CeEr3 is a metastable metallic intermetallic compound formed from cerium and erbium that is primarily utilized in fundamental materials science research.
About CeEr3
CeEr3 is a metallic intermetallic compound composed of cerium and erbium. As a metastable phase, it represents a complex structural arrangement that highlights the intricate interplay between rare-earth elements in solid-state chemistry. Its metallic nature suggests high electrical conductivity, making it a subject of interest for fundamental studies in magnetism and alloy physics. The existence of multiple reported structures across various databases underscores its significance as a versatile candidate for structural investigations. Researchers study this compound to better understand phase stability and the formation of rare-earth-rich intermetallic systems.
Key Properties
Cross-validated computational properties for CeEr3, aggregated across 5 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 CeEr3, 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. |
|---|---|---|---|---|---|
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.0638 | -33.090 | 8.55 |
| Pm-3m (No. 221) | cubic | 0.00 | 0.0662 | -33.088 | 8.73 |
| I4/mmm (No. 139) | tetragonal | 0.00 | 0.0823 | -33.072 | 8.60 |
| P63/mmc (No. 194) | — | — | — | — | — |
| — | — | — | — | — | 8.55 |
| — | — | — | — | — | 8.69 |
| P63/mmc (No. 194) | — | — | — | — | — |
| — | — | — | — | — | 8.65 |
| — | — | — | — | — | 8.65 |
| — | — | — | — | — | — |
| Pm-3m (No. 221) | — | — | — | — | — |
| — | — | — | — | — | 8.69 |
Applications
Where CeEr3 is used.
Frequently Asked Questions
Common questions about CeEr3, answered from cross-validated data.
What is CeEr3?
CeEr3 is a metastable metallic intermetallic compound formed from cerium and erbium that is primarily utilized in fundamental materials science research.
What is CeEr3 used for?
What is the band gap of CeEr3?
Is CeEr3 a metal, semiconductor, or insulator?
Is CeEr3 thermodynamically stable?
What is the crystal structure of CeEr3?
What is the density of CeEr3?
How many polymorphs of CeEr3 are known?
What elements does CeEr3 contain?
Where does the data for CeEr3 come from?
How It Compares
As a unique intermetallic phase, CeEr3 serves as a valuable case study for the behavior of binary rare-earth systems. Without established siblings in a defined class, it stands as a standalone example of how cerium and erbium can combine into metastable configurations, providing essential data for predicting the stability of similar metallic alloys.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- alexandria — Data from alexandria.
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