Sr2N
Sr2N is a thermodynamically stable semiconducting binary nitride.
About Sr2N
Sr2N is a distinct nitride compound that occupies a stable position on the convex hull, indicating significant thermodynamic robustness. Its semiconducting nature makes it an intriguing subject for fundamental research into electronic materials science.
With a high degree of structural diversity documented across multiple databases, this compound serves as a key reference point for understanding nitrogen-strontium interactions. Its stability and electronic profile suggest it may hold untapped potential for specialized technological development.
Key Properties
Cross-validated computational properties for Sr2N, 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 Sr2N, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 0.00 | 0.0000 | -13.812 | 3.51 |
| C2/m (No. 12) | monoclinic | 0.11 | 3.2699 | -10.542 | 0.12 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.61 |
| C2/m (No. 12) | Monoclinic | — | — | — | 3.55 |
| P2/m (No. 10) | Monoclinic | — | — | — | 3.33 |
| P2/m (No. 10) | Monoclinic | — | — | — | 3.31 |
| C2/m (No. 12) | Monoclinic | — | — | — | 3.95 |
| C2/m (No. 12) | Monoclinic | — | — | — | 2.95 |
| P42/mmc (No. 131) | Tetragonal | — | — | — | 3.31 |
| P-1 (No. 2) | Triclinic | — | — | — | 2.63 |
| C2/c (No. 15) | Monoclinic | — | — | — | 3.74 |
| C2/m (No. 12) | Monoclinic | — | — | — | 3.23 |
Applications
Where Sr2N is used.
Frequently Asked Questions
Common questions about Sr2N, answered from cross-validated data.
What is Sr2N?
Sr2N is a thermodynamically stable semiconducting binary nitride.
What is Sr2N used for?
What is the band gap of Sr2N?
Is Sr2N a metal, semiconductor, or insulator?
Is Sr2N thermodynamically stable?
What is the crystal structure of Sr2N?
What is the density of Sr2N?
How many polymorphs of Sr2N are known?
What elements does Sr2N contain?
Where does the data for Sr2N come from?
How It Compares
As a stable semiconducting nitride, Sr2N represents a unique structural configuration within the landscape of strontium-based nitrogen compounds. It serves as a foundational example of how these elements can form thermodynamically favored phases with distinct electronic properties.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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