GaMn2Nb
This compound is a complex intermetallic material composed of gallium, manganese, and niobium. It is primarily studied in materials science research for its unique magnetic and structural properties within the Heusler alloy family.
GaMnNb
Overview
Key Properties
Cross-validated computational properties for GaMn2Nb, 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.
0.41 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.
0.009 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.
Near hull (likely stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
5
3 databases, 4 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for GaMn2Nb, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.0087 | -16.612 | 8.33 |
| Immm (No. 71) | orthorhombic | 0.41 | 2.9573 | -13.664 | 0.60 |
| — | — | — | — | — | 8.24 |
| Imm2 (No. 44) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Uses
Applications
Where GaMn2Nb is used.
Fundamental condensed matter researchMagnetic materials developmentSpintronics studies
Reference
Frequently Asked Questions
Common questions about GaMn2Nb, answered from cross-validated data.
What is GaMn2Nb?
This compound is a complex intermetallic material composed of gallium, manganese, and niobium. It is primarily studied in materials science research for its unique magnetic and structural properties within the Heusler alloy family.
More questions
What is GaMn2Nb used for?
GaMn2Nb is used in fundamental condensed matter research, magnetic materials development, and spintronics studies.
What is the band gap of GaMn2Nb?
GaMn2Nb has a DFT-computed band gap of 0.41 eV across 5 reported structures.
Is GaMn2Nb a metal, semiconductor, or insulator?
With a band gap up to 0.41 eV it is a semiconductor.
Is GaMn2Nb thermodynamically stable?
GaMn2Nb has a lowest energy above hull of 0.009 eV/atom (near hull (likely stable)).
What is the crystal structure of GaMn2Nb?
The lowest-energy reported polymorph of GaMn2Nb is cubic symmetry, space group Fm-3m (No. 225).
What is the density of GaMn2Nb?
The computed density of the ground-state structure of GaMn2Nb is 8.33 g/cm³.
How many polymorphs of GaMn2Nb are known?
5 structures of GaMn2Nb are reported across 3 databases, spanning 4 distinct space groups.
What elements does GaMn2Nb contain?
GaMn2Nb contains Ga, Mn, and Nb (3 elements).
Where does the data for GaMn2Nb come from?
GaMn2Nb data is cross-referenced from materials_project, omat24, nomad.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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