MnNi
MnNi is a thermodynamically stable metallic compound composed of manganese and nickel that is frequently studied for its structural and magnetic properties.

About MnNi
MnNi is a metallic intermetallic compound formed from manganese and nickel. It is characterized by its thermodynamic stability, sitting directly on the convex hull, which indicates a robust energetic state that facilitates its formation and persistence in various processing conditions.
Due to its metallic nature, this compound is primarily investigated for its magnetic and structural properties in alloy research. Its high data richness, supported by numerous reported structures, highlights its significance as a model system for understanding binary transition metal interactions.
Key Properties
Cross-validated computational properties for MnNi, 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.
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.
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.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of MnNi. 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.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Synthesis Routes
Literature-extracted synthesis procedures targeting MnNi.
Applications
Where MnNi is used.
Frequently Asked Questions
Common questions about MnNi, answered from cross-validated data.
What is MnNi?
MnNi is a thermodynamically stable metallic compound composed of manganese and nickel that is frequently studied for its structural and magnetic properties.
What is MnNi used for?
What is the band gap of MnNi?
Is MnNi a metal, semiconductor, or insulator?
Is MnNi thermodynamically stable?
How many polymorphs of MnNi are known?
How is MnNi synthesized?
What elements does MnNi contain?
Where does the data for MnNi come from?
How It Compares
As a stable binary intermetallic, MnNi serves as a foundational reference point for studying the phase behavior and magnetic interactions within manganese-nickel systems, providing essential insights into how these transition metals organize at the atomic scale.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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