MgSiN2

Magnesium silicon nitride · Magnesium silicide nitride

Magnesium silicon nitride is a ceramic material known for its structural stability and thermal properties. It is primarily researched for its potential as a host material for phosphors in lighting technologies and as a component in advanced composite materials.

Crystal structure of MgSiN2 (orthorhombic, Pna21 (No. 33))
Ground-state structure · Materials Project
Overview

Key Properties

Cross-validated computational properties for Magnesium silicon nitride, aggregated across 3 databases.

Band Gap

3.68–4.18 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

13
3 databases, 4 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for MgSiN2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Pna21 (No. 33)orthorhombic3.970.0000-7.2793.15
I-42d (No. 122)tetragonal3.680.0293-7.2503.18
R-3m (No. 166)trigonal4.180.2826-6.9973.87
I-42d (No. 122)
Pna21 (No. 33)
R-3m (No. 166)
Pna21 (No. 33)Orthorhombic3.07
Pna21 (No. 33)Orthorhombic3.22
Pna21 (No. 33)Orthorhombic3.14
P4/mmm (No. 123)
I-42d (No. 122)Tetragonal3.09
I-42d (No. 122)Tetragonal3.23
Uses

Applications

Where Magnesium silicon nitride is used.

LED phosphorsCeramic compositesThermal management materials
Reference

Frequently Asked Questions

Common questions about Magnesium silicon nitride, answered from cross-validated data.

What is MgSiN2?

Magnesium silicon nitride is a ceramic material known for its structural stability and thermal properties. It is primarily researched for its potential as a host material for phosphors in lighting technologies and as a component in advanced composite materials.

More questions
What is MgSiN2 used for?
Magnesium silicon nitride (MgSiN2) is used in lED phosphors, ceramic composites, and thermal management materials.
What is the band gap of MgSiN2?
Magnesium silicon nitride (MgSiN2) has a DFT-computed band gap of 3.68–4.18 eV across 13 reported structures.
Is MgSiN2 a metal, semiconductor, or insulator?
With a wide band gap up to 4.18 eV it is an insulator / wide-band-gap material.
Is MgSiN2 thermodynamically stable?
Yes — Magnesium silicon nitride (MgSiN2) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of MgSiN2?
The lowest-energy reported polymorph of Magnesium silicon nitride (MgSiN2) is orthorhombic symmetry, space group Pna21 (No. 33).
What is the density of MgSiN2?
The computed density of the ground-state structure of Magnesium silicon nitride (MgSiN2) is 3.15 g/cm³.
How many polymorphs of MgSiN2 are known?
13 structures of MgSiN2 are reported across 3 databases, spanning 4 distinct space groups.
What elements does MgSiN2 contain?
Magnesium silicon nitride (MgSiN2) contains Mg, N, and Si (3 elements).
Where does the data for MgSiN2 come from?
MgSiN2 data is cross-referenced from materials_project, jarvis, mpaloe.
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Related Compounds

Other Nitride Semiconductors in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
  • mpaloe — Data from mpaloe.

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