CdSb
cadmium antimonide · cadmium monoantimonide
Cadmium antimonide is a stable, semimetallic binary compound composed of cadmium and antimony.
About cadmium antimonide
Cadmium antimonide is a binary inorganic compound characterized by its semimetallic electronic nature. As a thermodynamically stable phase residing on the convex hull, it represents a robust material system with a well-documented structural profile across multiple research databases.
Its unique electronic character makes it an intriguing subject for studies involving narrow-gap or semimetallic behavior. The material is valued for its stability, which allows for consistent investigation into its physical properties and potential integration into specialized electronic components.
Key Properties
Cross-validated computational properties for cadmium antimonide, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CdSb. 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.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for CdSb, 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. |
|---|---|---|---|---|---|
| Pbca (No. 61) | orthorhombic | 0.02 | 0.0000 | -23.002 | 6.60 |
| Pmmm (No. 47) | orthorhombic | 0.00 | 0.1503 | -22.851 | 7.05 |
| Pmmm (No. 47) | Orthorhombic | — | — | — | 7.05 |
| No. 0 | unknown | — | — | — | 0.85 |
| — | — | — | — | — | 7.53 |
| C2/m (No. 12) | Monoclinic | — | — | — | 6.59 |
| C2/m (No. 12) | Monoclinic | — | — | — | 6.05 |
| C2/m (No. 12) | Monoclinic | — | — | — | 6.11 |
| P-1 (No. 2) | Triclinic | — | — | — | 11.28 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 5.02 |
| P2/m (No. 10) | Monoclinic | — | — | — | 7.47 |
| Pmmm (No. 47) | Orthorhombic | — | — | — | 7.28 |
Applications
Where cadmium antimonide is used.
Frequently Asked Questions
Common questions about cadmium antimonide, answered from cross-validated data.
What is CdSb?
Cadmium antimonide is a stable, semimetallic binary compound composed of cadmium and antimony.
What is CdSb used for?
What is the band gap of CdSb?
Is CdSb a metal, semiconductor, or insulator?
Is CdSb thermodynamically stable?
What is the crystal structure of CdSb?
What is the density of CdSb?
How many polymorphs of CdSb are known?
What elements does CdSb contain?
Where does the data for CdSb come from?
How It Compares
As a thermodynamically stable semimetallic compound, cadmium antimonide serves as a foundational reference point for binary cadmium-antimony systems. Its structural consistency and stability distinguish it as a reliable material for exploring the fundamental physics of near-zero-gap semiconductors.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- 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).
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