Ca1Cd2Sr1
Ca1Cd2Sr1 is a semiconducting ternary intermetallic compound that exists in a metastable state.
About Ca1Cd2Sr1
Ca1Cd2Sr1 is a complex intermetallic compound composed of calcium, cadmium, and strontium. As a semiconducting material, it exhibits electronic properties that distinguish it from simple metallic alloys, placing it in a unique category of interest for fundamental solid-state research.
Despite being identified in multiple structural configurations across databases, the compound is characterized as being above the thermodynamic hull, suggesting it is a metastable phase. Its existence is primarily of interest to researchers studying phase stability and the formation of complex ternary intermetallics.
Key Properties
Cross-validated computational properties for Ca1Cd2Sr1, aggregated across 2 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 Ca1Cd2Sr1, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.38 | 1.3753 | -0.349 | 0.32 |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Ca1Cd2Sr1, answered from cross-validated data.
What is Ca1Cd2Sr1?
Ca1Cd2Sr1 is a semiconducting ternary intermetallic compound that exists in a metastable state.
What is the band gap of Ca1Cd2Sr1?
Is Ca1Cd2Sr1 a metal, semiconductor, or insulator?
Is Ca1Cd2Sr1 thermodynamically stable?
What is the crystal structure of Ca1Cd2Sr1?
What is the density of Ca1Cd2Sr1?
How many polymorphs of Ca1Cd2Sr1 are known?
What elements does Ca1Cd2Sr1 contain?
Where does the data for Ca1Cd2Sr1 come from?
How It Compares
As a unique ternary intermetallic phase, Ca1Cd2Sr1 represents a specialized case in materials science where structural complexity does not necessarily correlate with ground-state thermodynamic stability. It serves as an example of the diverse, often metastable, phases that can be synthesized in alkaline earth-cadmium systems.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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