Ga2Ge2N2Sr4
Ga2Ge2N2Sr4 is a thermodynamically stable, semimetallic quaternary nitride compound containing gallium, germanium, nitrogen, and strontium.
About Ga2Ge2N2Sr4
Ga2Ge2N2Sr4 is a complex quaternary nitride composed of gallium, germanium, nitrogen, and strontium. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement of these elements that maintains integrity under standard conditions. Its electronic character is defined as near-zero-gap, placing it in the category of semimetallic materials. This electronic profile suggests unique charge transport behaviors that distinguish it from traditional wide-gap insulating nitrides. While it remains a specialized research material, its stability makes it a significant subject for exploring the intersection of group 13 and 14 elements within a nitrogen-rich framework.
Key Properties
Cross-validated computational properties for Ga2Ge2N2Sr4, aggregated across 3 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.
Reported Structures
Lowest-energy structures reported for Ga2Ge2N2Sr4, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P21/m (No. 11) | monoclinic | 0.03 | 0.0000 | -4.606 | 4.61 |
| P21/m (No. 11) | — | — | — | — | — |
| — | — | — | — | — | 4.61 |
Applications
Where Ga2Ge2N2Sr4 is used.
Frequently Asked Questions
Common questions about Ga2Ge2N2Sr4, answered from cross-validated data.
What is Ga2Ge2N2Sr4?
Ga2Ge2N2Sr4 is a thermodynamically stable, semimetallic quaternary nitride compound containing gallium, germanium, nitrogen, and strontium.
What is Ga2Ge2N2Sr4 used for?
What is the band gap of Ga2Ge2N2Sr4?
Is Ga2Ge2N2Sr4 a metal, semiconductor, or insulator?
Is Ga2Ge2N2Sr4 thermodynamically stable?
What is the crystal structure of Ga2Ge2N2Sr4?
What is the density of Ga2Ge2N2Sr4?
How many polymorphs of Ga2Ge2N2Sr4 are known?
What elements does Ga2Ge2N2Sr4 contain?
Where does the data for Ga2Ge2N2Sr4 come from?
How It Compares
As a unique quaternary nitride, Ga2Ge2N2Sr4 serves as a distinct example of complex structural chemistry within its class. Without direct structural siblings in this specific composition group, it acts as a foundational reference point for understanding how the integration of alkaline earth metals like strontium with gallium and germanium influences the electronic density near the Fermi level.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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