K2MgO2

K2MgO2 is a stable, semiconducting ternary oxide consisting of potassium, magnesium, and oxygen.

KMgO
Crystal structure of K2MgO2
Ground-state structure · Materials Project
Overview

About K2MgO2

K2MgO2 is a ternary oxide composed of potassium, magnesium, and oxygen. As a thermodynamically stable compound residing on the convex hull, it represents a robust phase within its chemical system, offering a well-defined structural framework for further investigation.

This material exhibits semiconducting electronic characteristics, making it an intriguing candidate for specialized solid-state applications. Its stability suggests potential for synthesis and integration into complex material architectures where predictable electronic behavior is required.

At a glance

Key Properties

Cross-validated computational properties for K2MgO2, aggregated across 3 databases.

Band Gap

2.76 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
1 DFT source

Structures

5
3 databases, 2 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of K2MgO2. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: medium

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

1
materials_project

Space Group Consensus

All match
Reference

Frequently Asked Questions

Common questions about K2MgO2, answered from cross-validated data.

What is K2MgO2?

K2MgO2 is a stable, semiconducting ternary oxide consisting of potassium, magnesium, and oxygen.

More questions
What is the band gap of K2MgO2?
K2MgO2 has a DFT-computed band gap of 2.76 eV across 5 reported structures.
Is K2MgO2 a metal, semiconductor, or insulator?
With a band gap up to 2.76 eV it is a semiconductor.
Is K2MgO2 thermodynamically stable?
Yes — K2MgO2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of K2MgO2 are known?
5 structures of K2MgO2 are reported across 3 databases, spanning 2 distinct space groups.
What elements does K2MgO2 contain?
K2MgO2 contains K, Mg, and O (3 elements).
Where does the data for K2MgO2 come from?
K2MgO2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct ternary oxide, K2MgO2 serves as a foundational example of stable potassium-magnesium-oxygen chemistry. Without direct structural siblings in this specific class, it stands as a unique reference point for understanding the interplay between alkali metals and alkaline earth oxides in semiconducting materials.

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

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