MgFeAs2O7

MgFeAs2O7 is a semiconducting iron-based compound that sits near the thermodynamic stability limit, making it a viable target for synthetic materials studies.

Crystal structure of MgFeAs2O7
Ground-state structure · Materials Project
Overview

About MgFeAs2O7

MgFeAs2O7 is an iron-based compound characterized by its semiconducting electronic nature. As a material situated near the thermodynamic hull, it is considered a promising candidate for experimental synthesis and further structural characterization within the broader iron-based material family.

Its complex composition of magnesium, iron, arsenic, and oxygen suggests a distinct structural framework that differentiates it from simpler binary iron-chalcogenides or pnictides. This compound serves as an intriguing subject for researchers exploring the interplay between iron-based coordination environments and semiconducting behavior.

At a glance

Key Properties

Cross-validated computational properties for MgFeAs2O7, aggregated across 2 databases.

Band Gap

1.59–2.10 eV
Range across DFT structures

Energy Above Hull

0.007 eV/atom
Best (lowest) across sources

Stability

Near hull (likely stable)
1 DFT source

Structures

13
2 databases, 3 space groups
Uses

Applications

Where MgFeAs2O7 is used.

Materials science researchSolid-state chemistry explorationSemiconductor development studies
Reference

Frequently Asked Questions

Common questions about MgFeAs2O7, answered from cross-validated data.

What is MgFeAs2O7?

MgFeAs2O7 is a semiconducting iron-based compound that sits near the thermodynamic stability limit, making it a viable target for synthetic materials studies.

More questions
What is MgFeAs2O7 used for?
MgFeAs2O7 is used in materials science research, solid-state chemistry exploration, and semiconductor development studies.
What is the band gap of MgFeAs2O7?
MgFeAs2O7 has a DFT-computed band gap of 1.59–2.10 eV across 13 reported structures.
Is MgFeAs2O7 a metal, semiconductor, or insulator?
With a band gap up to 2.10 eV it is a semiconductor.
Is MgFeAs2O7 thermodynamically stable?
MgFeAs2O7 has a lowest energy above hull of 0.007 eV/atom (near hull (likely stable)).
How many polymorphs of MgFeAs2O7 are known?
13 structures of MgFeAs2O7 are reported across 2 databases, spanning 3 distinct space groups.
What elements does MgFeAs2O7 contain?
MgFeAs2O7 contains As, Fe, Mg, and O (4 elements).
Where does the data for MgFeAs2O7 come from?
MgFeAs2O7 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the iron-based superconductors class.

Unlike the well-known superconducting binary phases such as FeSe, which are frequently studied for their metallic and magnetic properties, MgFeAs2O7 occupies a distinct niche as a semiconducting oxide-pnictide. While compounds like FeAs2 and FeAsS are often investigated for their specific pnictide-based electronic structures, the inclusion of magnesium and oxygen in this lattice provides a different chemical landscape for potential structural tuning.

Explore

Related Compounds

Other Iron-Based Superconductors in the database.

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

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