Fe8Ge8Si8
This material is a complex intermetallic compound composed of iron, germanium, and silicon. It is primarily studied in the field of condensed matter physics for its unique structural and electronic properties.
FeGeSi
Overview
Key Properties
Cross-validated computational properties for Fe8Ge8Si8, 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.
0.26–0.68 eV
Range across DFT structures
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.
0.150 eV/atom
Best (lowest) across sources
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.
Above hull
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
6
4 databases, 2 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Fe8Ge8Si8, 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. |
|---|---|---|---|---|---|
| Cmce (No. 64) | orthorhombic | 0.68 | 0.1500 | -6.340 | 6.42 |
| Cmce (No. 64) | orthorhombic | 0.26 | 0.1665 | -6.324 | 6.40 |
| — | — | — | — | — | 6.12 |
| No. 0 | unknown | — | — | — | 10.97 |
| Cmce (No. 64) | — | — | — | — | — |
| Cmce (No. 64) | — | — | — | — | — |
Uses
Applications
Where Fe8Ge8Si8 is used.
Materials science researchSolid-state physics studiesFundamental crystallographic investigation
Reference
Frequently Asked Questions
Common questions about Fe8Ge8Si8, answered from cross-validated data.
What is Fe8Ge8Si8?
This material is a complex intermetallic compound composed of iron, germanium, and silicon. It is primarily studied in the field of condensed matter physics for its unique structural and electronic properties.
More questions
What is Fe8Ge8Si8 used for?
Fe8Ge8Si8 is used in materials science research, solid-state physics studies, and fundamental crystallographic investigation.
What is the band gap of Fe8Ge8Si8?
Fe8Ge8Si8 has a DFT-computed band gap of 0.26–0.68 eV across 6 reported structures.
Is Fe8Ge8Si8 a metal, semiconductor, or insulator?
With a band gap up to 0.68 eV it is a semiconductor.
Is Fe8Ge8Si8 thermodynamically stable?
Fe8Ge8Si8 has a lowest energy above hull of 0.150 eV/atom (above hull).
What is the crystal structure of Fe8Ge8Si8?
The lowest-energy reported polymorph of Fe8Ge8Si8 is orthorhombic symmetry, space group Cmce (No. 64).
What is the density of Fe8Ge8Si8?
The computed density of the ground-state structure of Fe8Ge8Si8 is 6.42 g/cm³.
How many polymorphs of Fe8Ge8Si8 are known?
6 structures of Fe8Ge8Si8 are reported across 4 databases, spanning 2 distinct space groups.
What elements does Fe8Ge8Si8 contain?
Fe8Ge8Si8 contains Fe, Ge, and Si (3 elements).
Where does the data for Fe8Ge8Si8 come from?
Fe8Ge8Si8 data is cross-referenced from materials_project, omat24, cod, aflow.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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