MnNi2Sb

MnNi2Sb is a metastable, metallic transition metal pnictide used primarily in fundamental materials science research regarding thermoelectric properties.

Crystal structure of MnNi2Sb
Ground-state structure · Materials Project
Overview

About MnNi2Sb

MnNi2Sb is a metallic compound characterized by its complex structural arrangement within the skutterudite-related family. As a metastable phase, it represents a specialized material of interest for researchers investigating non-equilibrium systems and their potential for thermoelectric energy conversion.

Its metallic nature distinguishes it from traditional wide-gap semiconductors, positioning it as a subject of study for high-conductivity applications. With significant data richness across multiple databases, it serves as a critical reference point for understanding the stability and electronic behavior of transition metal pnictide systems.

At a glance

Key Properties

Cross-validated computational properties for MnNi2Sb, aggregated across 5 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.068 eV/atom
Best (lowest) across sources

Stability

Metastable
4 DFT sources

Structures

13
5 databases, 3 space groups
Uses

Applications

Where MnNi2Sb is used.

Thermoelectric researchCondensed matter physics studiesMaterials informatics
Reference

Frequently Asked Questions

Common questions about MnNi2Sb, answered from cross-validated data.

What is MnNi2Sb?

MnNi2Sb is a metastable, metallic transition metal pnictide used primarily in fundamental materials science research regarding thermoelectric properties.

More questions
What is MnNi2Sb used for?
MnNi2Sb is used in thermoelectric research, condensed matter physics studies, and materials informatics.
What is the band gap of MnNi2Sb?
MnNi2Sb is computed to be metallic (no band gap) in the reported DFT structures.
Is MnNi2Sb a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is MnNi2Sb thermodynamically stable?
MnNi2Sb has a lowest energy above hull of 0.068 eV/atom (metastable).
How many polymorphs of MnNi2Sb are known?
13 structures of MnNi2Sb are reported across 5 databases, spanning 3 distinct space groups.
What elements does MnNi2Sb contain?
MnNi2Sb contains Mn, Ni, and Sb (3 elements).
Where does the data for MnNi2Sb come from?
MnNi2Sb data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the skutterudite thermoelectrics class.

Within the broader class of skutterudite and pnictide-based materials, MnNi2Sb occupies a distinct niche compared to more common binary phases like NiP or FeP. While many of its siblings exhibit stable, well-defined semiconducting behavior, MnNi2Sb is noted for its metastability and metallic character, making it a unique outlier that challenges standard structural trends observed in more conventional members like CoP2 or NiP2.

Explore

Related Compounds

Other Skutterudite Thermoelectrics in the database.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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