Cr1Re1W2
Cr1Re1W2 is a semimetallic ternary transition metal alloy containing chromium, rhenium, and tungsten.
About Cr1Re1W2
Cr1Re1W2 is a complex ternary metallic compound composed of chromium, rhenium, and tungsten. As a semimetallic material with a near-zero band gap, it exhibits electronic characteristics typical of transition metal alloys that bridge the gap between metallic and semiconducting behavior.
Due to its position above the thermodynamic hull, this compound is considered metastable, suggesting that its synthesis requires specific kinetic control. Despite its instability, the existence of multiple reported structural variations indicates significant interest in its phase space within materials science research.
Key Properties
Cross-validated computational properties for Cr1Re1W2, 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 Cr1Re1W2, 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 | 0.01 | 5.0068 | -37.548 | 1.17 |
| I4/mmm (No. 139) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Cr1Re1W2, answered from cross-validated data.
What is Cr1Re1W2?
Cr1Re1W2 is a semimetallic ternary transition metal alloy containing chromium, rhenium, and tungsten.
What is the band gap of Cr1Re1W2?
Is Cr1Re1W2 a metal, semiconductor, or insulator?
Is Cr1Re1W2 thermodynamically stable?
What is the crystal structure of Cr1Re1W2?
What is the density of Cr1Re1W2?
How many polymorphs of Cr1Re1W2 are known?
What elements does Cr1Re1W2 contain?
Where does the data for Cr1Re1W2 come from?
How It Compares
As a unique ternary alloy, Cr1Re1W2 represents a specialized case within the broader landscape of transition metal systems, serving as a subject for studying the stability and electronic behavior of complex metallic phases that do not naturally settle into a single ground-state configuration.
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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