Er4MnS7
Er4MnS7 is a semiconducting ternary sulfide containing erbium and manganese that is considered a promising candidate for experimental synthesis.
About Er4MnS7
Er4MnS7 is a complex ternary sulfide composed of erbium, manganese, and sulfur. As a semiconducting material, it represents a specialized structural arrangement that bridges the properties of rare-earth elements and transition metals within a sulfur-based lattice.
Because it sits near the thermodynamic hull, this compound is considered a viable candidate for experimental synthesis. Its existence in multiple structural databases highlights its significance as a target for researchers exploring the electronic and magnetic potential of rare-earth-based chalcogenides.
Key Properties
Cross-validated computational properties for Er4MnS7, 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.
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 Er4MnS7, 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. |
|---|---|---|---|---|---|
| Cm (No. 8) | monoclinic | 0.56 | 0.0176 | -19.363 | 6.15 |
| Cm (No. 8) | — | — | — | — | — |
| — | — | — | — | — | 4.85 |
Applications
Where Er4MnS7 is used.
Frequently Asked Questions
Common questions about Er4MnS7, answered from cross-validated data.
What is Er4MnS7?
Er4MnS7 is a semiconducting ternary sulfide containing erbium and manganese that is considered a promising candidate for experimental synthesis.
What is Er4MnS7 used for?
What is the band gap of Er4MnS7?
Is Er4MnS7 a metal, semiconductor, or insulator?
Is Er4MnS7 thermodynamically stable?
What is the crystal structure of Er4MnS7?
What is the density of Er4MnS7?
How many polymorphs of Er4MnS7 are known?
What elements does Er4MnS7 contain?
Where does the data for Er4MnS7 come from?
How It Compares
As a unique ternary sulfide, Er4MnS7 serves as a distinct example of how rare-earth and transition metal combinations can form stable, semiconducting frameworks in the absence of more common structural archetypes.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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