CrGe
Chromium monogermanide is an intermetallic compound composed of chromium and germanium. It is primarily studied in materials science for its magnetic properties and its potential utility in specialized electronic or spintronic components.
CrGe
Overview
Key Properties
Cross-validated computational properties for CrGe, 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.
Metallic / not reported
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.
0.089 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.
Metastable
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
145
4 databases, 27 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CrGe. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
1.00 / 1.00
Trust tier: medium
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
0.000 eV
EAH spread across sources
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
2
jarvis, materials_project
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
All match
Crystallography
Reported Structures
Lowest-energy structures reported for CrGe, 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. |
|---|---|---|---|---|---|
| P213 (No. 198) | cubic | 0.00 | 0.0892 | -14.383 | 7.64 |
| P2/m (No. 10) | Monoclinic | — | — | — | 4.98 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 6.42 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 6.50 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 6.77 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 5.76 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 5.79 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 4.56 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 5.37 |
| P21/c (No. 14) | Monoclinic | — | — | — | 7.59 |
| P213 (No. 198) | Cubic | — | — | — | 7.64 |
| Pnma (No. 62) | Orthorhombic | — | — | — | 5.54 |
Uses
Applications
Where CrGe is used.
Materials science researchSpintronics developmentMagnetic property studies
Reference
Frequently Asked Questions
Common questions about CrGe, answered from cross-validated data.
What is CrGe?
Chromium monogermanide is an intermetallic compound composed of chromium and germanium. It is primarily studied in materials science for its magnetic properties and its potential utility in specialized electronic or spintronic components.
More questions
What is CrGe used for?
CrGe is used in materials science research, spintronics development, and magnetic property studies.
What is the band gap of CrGe?
CrGe is computed to be metallic (no band gap) in the reported DFT structures.
Is CrGe a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is CrGe thermodynamically stable?
CrGe has a lowest energy above hull of 0.089 eV/atom (metastable).
What is the crystal structure of CrGe?
The lowest-energy reported polymorph of CrGe is cubic symmetry, space group P213 (No. 198).
What is the density of CrGe?
The computed density of the ground-state structure of CrGe is 7.64 g/cm³.
How many polymorphs of CrGe are known?
145 structures of CrGe are reported across 4 databases, spanning 27 distinct space groups.
What elements does CrGe contain?
CrGe contains Cr and Ge (2 elements).
Where does the data for CrGe come from?
CrGe data is cross-referenced from materials_project, mpaloe, jarvis.
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).
Analyze CrGe in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →