FePS
Iron phosphorus sulfide is a layered transition metal chalcogenide material characterized by its two-dimensional crystal structure. It is primarily studied for its potential in electronic and magnetic applications due to its unique semiconducting properties and structural anisotropy.
Key Properties
Cross-validated computational properties for FePS, 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 FePS, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 0.51 | 0.0000 | -6.707 | 5.07 |
| Pm (No. 6) | Monoclinic | — | — | — | 3.92 |
| Pmn21 (No. 31) | Orthorhombic | — | — | — | 5.13 |
| Pmn21 (No. 31) | Orthorhombic | — | — | — | 4.80 |
| P21/c (No. 14) | — | — | — | — | — |
Applications
Where FePS is used.
Frequently Asked Questions
Common questions about FePS, answered from cross-validated data.
What is FePS?
Iron phosphorus sulfide is a layered transition metal chalcogenide material characterized by its two-dimensional crystal structure. It is primarily studied for its potential in electronic and magnetic applications due to its unique semiconducting properties and structural anisotropy.
What is FePS used for?
What is the band gap of FePS?
Is FePS a metal, semiconductor, or insulator?
Is FePS thermodynamically stable?
What is the crystal structure of FePS?
What is the density of FePS?
How many polymorphs of FePS are known?
What elements does FePS contain?
Where does the data for FePS come from?
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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