Ge3Ru2
This intermetallic compound is composed of germanium and ruthenium. It is primarily studied in the field of condensed matter physics for its unique structural and electronic properties.
Overview
Key Properties
Cross-validated computational properties for Ge3Ru2, 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.
0.38 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)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
19
4 databases, 11 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Ge3Ru2, 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. |
|---|---|---|---|---|---|
| Pbcn (No. 60) | orthorhombic | 0.38 | 0.0000 | -18.826 | 9.18 |
| P-4c2 (No. 116) | tetragonal | 0.34 | 0.0062 | -18.820 | 9.13 |
| C2 (No. 5) | Monoclinic | — | — | — | 8.05 |
| P1 (No. 1) | Triclinic | — | — | — | 7.82 |
| C2 (No. 5) | Monoclinic | — | — | — | 6.51 |
| C2 (No. 5) | Monoclinic | — | — | — | 9.19 |
| P3m1 (No. 156) | Trigonal | — | — | — | 5.68 |
| C2/m (No. 12) | Monoclinic | — | — | — | 8.29 |
| P-4c2 (No. 116) | — | — | — | — | — |
| C2/m (No. 12) | Monoclinic | — | — | — | 8.53 |
| Cm (No. 8) | Monoclinic | — | — | — | 5.80 |
| C2/m (No. 12) | Monoclinic | — | — | — | 8.18 |
Uses
Applications
Where Ge3Ru2 is used.
Materials science researchSolid-state physics studies
Reference
Frequently Asked Questions
Common questions about Ge3Ru2, answered from cross-validated data.
What is Ge3Ru2?
This intermetallic compound is composed of germanium and ruthenium. It is primarily studied in the field of condensed matter physics for its unique structural and electronic properties.
More questions
What is Ge3Ru2 used for?
Ge3Ru2 is used in materials science research and solid-state physics studies.
What is the band gap of Ge3Ru2?
Ge3Ru2 has a DFT-computed band gap of 0.38 eV across 19 reported structures.
Is Ge3Ru2 a metal, semiconductor, or insulator?
With a band gap up to 0.38 eV it is a semiconductor.
Is Ge3Ru2 thermodynamically stable?
Yes — Ge3Ru2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Ge3Ru2?
The lowest-energy reported polymorph of Ge3Ru2 is orthorhombic symmetry, space group Pbcn (No. 60).
What is the density of Ge3Ru2?
The computed density of the ground-state structure of Ge3Ru2 is 9.18 g/cm³.
How many polymorphs of Ge3Ru2 are known?
19 structures of Ge3Ru2 are reported across 4 databases, spanning 11 distinct space groups.
What elements does Ge3Ru2 contain?
Ge3Ru2 contains Ge and Ru (2 elements).
Where does the data for Ge3Ru2 come from?
Ge3Ru2 data is cross-referenced from materials_project, mpaloe, jarvis, aflow.
Explore
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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