CeCu
Cerium copper is an intermetallic compound composed of rare earth and transition metal elements. It is primarily studied in condensed matter physics for its unique magnetic and electronic properties at low temperatures.
CeCu
Overview
Key Properties
Cross-validated computational properties for CeCu, 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.
Metallic / not reported
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.
0.100 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.
Above hull
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
7
4 databases, 2 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CeCu. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
1.00 / 1.00
Trust tier: medium
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
0.000 eV
EAH spread across sources
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
2
jarvis, materials_project
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
All match
Crystallography
Reported Structures
Lowest-energy structures reported for CeCu, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 0.00 | 0.1000 | -20.827 | 7.44 |
| Pnma (No. 62) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 1.69 |
| No. 0 | unknown | — | — | — | 1.44 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 7.44 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 7.30 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 7.21 |
Synthesis
Synthesis Routes
Literature-extracted synthesis procedures targeting CeCu.
Sol-Gel
Procedure available · ceder_solid_state
Uses
Applications
Where CeCu is used.
Fundamental materials researchStudy of heavy fermion systemsMagnetic property investigation
Reference
Frequently Asked Questions
Common questions about CeCu, answered from cross-validated data.
What is CeCu?
Cerium copper is an intermetallic compound composed of rare earth and transition metal elements. It is primarily studied in condensed matter physics for its unique magnetic and electronic properties at low temperatures.
More questions
What is CeCu used for?
CeCu is used in fundamental materials research, study of heavy fermion systems, and magnetic property investigation.
What is the band gap of CeCu?
CeCu is computed to be metallic (no band gap) in the reported DFT structures.
Is CeCu a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is CeCu thermodynamically stable?
CeCu has a lowest energy above hull of 0.100 eV/atom (above hull).
What is the crystal structure of CeCu?
The lowest-energy reported polymorph of CeCu is orthorhombic symmetry, space group Pnma (No. 62).
What is the density of CeCu?
The computed density of the ground-state structure of CeCu is 7.44 g/cm³.
How many polymorphs of CeCu are known?
7 structures of CeCu are reported across 4 databases, spanning 2 distinct space groups.
How is CeCu synthesized?
Literature-reported routes for CeCu include sol-gel.
What elements does CeCu contain?
CeCu contains Ce and Cu (2 elements).
Where does the data for CeCu come from?
CeCu data is cross-referenced from materials_project, jarvis, cod, mpaloe.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- mpaloe — Data from mpaloe.
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