CrTe2
CrTe2 is a thermodynamically stable metallic compound consisting of chromium and tellurium that is frequently studied for its structural and electronic properties.
About CrTe2
CrTe2 is a metallic compound composed of chromium and tellurium. As a thermodynamically stable phase located on the convex hull, it represents a robust configuration within its chemical system, supported by a significant body of structural data across multiple databases.
Its metallic character makes it an interesting candidate for research into conductive materials and electronic components. The stability of the compound suggests it is well-suited for further investigation in experimental material synthesis and solid-state physics applications.
Key Properties
Cross-validated computational properties for CrTe2, 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.
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 CrTe2, 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. |
|---|---|---|---|---|---|
| P-3m1 (No. 164) | trigonal | 0.00 | 0.0000 | -5.790 | 6.37 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 8.69 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.77 |
| C2/c (No. 15) | Monoclinic | — | — | — | 5.33 |
| Pmc21 (No. 26) | Orthorhombic | — | — | — | 7.07 |
| Pmc21 (No. 26) | Orthorhombic | — | — | — | 6.10 |
| Pmc21 (No. 26) | Orthorhombic | — | — | — | 6.33 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 4.79 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 4.58 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 4.66 |
| P1 (No. 1) | Triclinic | — | — | — | 5.99 |
| P-1 (No. 2) | Triclinic | — | — | — | 6.79 |
Applications
Where CrTe2 is used.
Frequently Asked Questions
Common questions about CrTe2, answered from cross-validated data.
What is CrTe2?
CrTe2 is a thermodynamically stable metallic compound consisting of chromium and tellurium that is frequently studied for its structural and electronic properties.
What is CrTe2 used for?
What is the band gap of CrTe2?
Is CrTe2 a metal, semiconductor, or insulator?
Is CrTe2 thermodynamically stable?
What is the crystal structure of CrTe2?
What is the density of CrTe2?
How many polymorphs of CrTe2 are known?
What elements does CrTe2 contain?
Where does the data for CrTe2 come from?
How It Compares
As a stable metallic dichalcogenide, CrTe2 serves as a foundational example of chromium-based tellurides. It occupies a distinct position in the landscape of transition metal chalcogenides, providing a stable platform for studying metallic behavior in layered or crystalline architectures.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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