CeAsRh
This compound is a ternary intermetallic material composed of cerium, arsenic, and rhodium. It is primarily studied in condensed matter physics for its magnetic properties and electronic behavior at low temperatures.
Overview
Key Properties
Cross-validated computational properties for CeAsRh, 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.
0.04 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)
1 DFT source
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
6
3 databases, 4 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for CeAsRh, 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 | 0.03 | 0.0000 | -24.486 | 8.73 |
| P4/nmm (No. 129) | tetragonal | 0.00 | 0.0000 | -22.739 | 9.66 |
| P63/mmc (No. 194) | hexagonal | 0.04 | 0.0035 | -24.483 | 8.74 |
| No. 0 | unknown | — | — | — | 2.21 |
| P63/mmc (No. 194) | — | — | — | — | — |
| Pnma (No. 62) | — | — | — | — | — |
Uses
Applications
Where CeAsRh is used.
Fundamental condensed matter researchStudy of heavy fermion systemsMagnetic property investigation
Reference
Frequently Asked Questions
Common questions about CeAsRh, answered from cross-validated data.
What is CeAsRh?
This compound is a ternary intermetallic material composed of cerium, arsenic, and rhodium. It is primarily studied in condensed matter physics for its magnetic properties and electronic behavior at low temperatures.
More questions
What is CeAsRh used for?
CeAsRh is used in fundamental condensed matter research, study of heavy fermion systems, and magnetic property investigation.
What is the band gap of CeAsRh?
CeAsRh has a DFT-computed band gap of 0.04 eV across 6 reported structures.
Is CeAsRh a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is CeAsRh thermodynamically stable?
Yes — CeAsRh sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of CeAsRh?
The lowest-energy reported polymorph of CeAsRh is orthorhombic symmetry, space group Pnma (No. 62).
What is the density of CeAsRh?
The computed density of the ground-state structure of CeAsRh is 8.73 g/cm³.
How many polymorphs of CeAsRh are known?
6 structures of CeAsRh are reported across 3 databases, spanning 4 distinct space groups.
What elements does CeAsRh contain?
CeAsRh contains As, Ce, and Rh (3 elements).
Where does the data for CeAsRh come from?
CeAsRh data is cross-referenced from materials_project, cod, jarvis.
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Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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