Ge4Yb8
This compound is an intermetallic material composed of ytterbium and germanium. It is primarily studied in the context of solid-state physics and materials research for its unique structural and electronic properties.
GeYb
Overview
Key Properties
Cross-validated computational properties for Ge4Yb8, 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.
0.02 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.
0.000 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.
On hull (stable)
1 DFT source
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
5
3 databases, 2 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Ge4Yb8, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 0.02 | 0.0000 | -29.681 | 9.75 |
| Pnma (No. 62) | — | — | — | — | — |
| Pnma (No. 62) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 2.11 |
| No. 0 | unknown | — | — | — | 1.75 |
Uses
Applications
Where Ge4Yb8 is used.
Materials science researchSolid-state physics investigations
Reference
Frequently Asked Questions
Common questions about Ge4Yb8, answered from cross-validated data.
What is Ge4Yb8?
This compound is an intermetallic material composed of ytterbium and germanium. It is primarily studied in the context of solid-state physics and materials research for its unique structural and electronic properties.
More questions
What is Ge4Yb8 used for?
Ge4Yb8 is used in materials science research and solid-state physics investigations.
What is the band gap of Ge4Yb8?
Ge4Yb8 has a DFT-computed band gap of 0.02 eV across 5 reported structures.
Is Ge4Yb8 a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is Ge4Yb8 thermodynamically stable?
Yes — Ge4Yb8 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Ge4Yb8?
The lowest-energy reported polymorph of Ge4Yb8 is orthorhombic symmetry, space group Pnma (No. 62).
What is the density of Ge4Yb8?
The computed density of the ground-state structure of Ge4Yb8 is 9.75 g/cm³.
How many polymorphs of Ge4Yb8 are known?
5 structures of Ge4Yb8 are reported across 3 databases, spanning 2 distinct space groups.
What elements does Ge4Yb8 contain?
Ge4Yb8 contains Ge and Yb (2 elements).
Where does the data for Ge4Yb8 come from?
Ge4Yb8 data is cross-referenced from materials_project, aflow, cod.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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