SrLa2Mn3O9
SrLa2Mn3O9 is a semimetallic complex oxide containing lanthanum, strontium, and manganese that exists in a metastable state.
About SrLa2Mn3O9
SrLa2Mn3O9 is a complex oxide featuring a combination of lanthanum, strontium, manganese, and oxygen. Its electronic character is defined as near-zero-gap, placing it in the semimetallic regime, which makes it an interesting subject for studies regarding charge transport and magnetic interactions in transition metal oxides.
While the compound has been identified across multiple structural databases, it is characterized as being thermodynamically above the hull. This suggests that it may be metastable under standard conditions, requiring specific synthesis pathways to stabilize its structure for potential research applications.
Key Properties
Cross-validated computational properties for SrLa2Mn3O9, 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 SrLa2Mn3O9, 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. |
|---|---|---|---|---|---|
| P-3c1 (No. 165) | trigonal | 0.00 | 0.1225 | -8.426 | 6.15 |
| P21/c (No. 14) | monoclinic | 0.00 | 0.1249 | -8.424 | 6.18 |
| P-3m1 (No. 164) | trigonal | 0.00 | 0.1477 | -8.401 | 6.20 |
| P3m1 (No. 156) | trigonal | 0.04 | 0.1767 | -8.372 | 6.20 |
| P-3m1 (No. 164) | — | — | — | — | — |
| P-3m1 (No. 164) | — | — | — | — | — |
| P-3m1 (No. 164) | Trigonal | — | — | — | 6.20 |
| P-3c1 (No. 165) | Trigonal | — | — | — | 6.15 |
| P-3c1 (No. 165) | Trigonal | — | — | — | 6.66 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 6.45 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 6.71 |
| P-3c1 (No. 165) | Trigonal | — | — | — | 6.40 |
Applications
Where SrLa2Mn3O9 is used.
Frequently Asked Questions
Common questions about SrLa2Mn3O9, answered from cross-validated data.
What is SrLa2Mn3O9?
SrLa2Mn3O9 is a semimetallic complex oxide containing lanthanum, strontium, and manganese that exists in a metastable state.
What is SrLa2Mn3O9 used for?
What is the band gap of SrLa2Mn3O9?
Is SrLa2Mn3O9 a metal, semiconductor, or insulator?
Is SrLa2Mn3O9 thermodynamically stable?
What is the crystal structure of SrLa2Mn3O9?
What is the density of SrLa2Mn3O9?
How many polymorphs of SrLa2Mn3O9 are known?
What elements does SrLa2Mn3O9 contain?
Where does the data for SrLa2Mn3O9 come from?
How It Compares
As a unique complex oxide, SrLa2Mn3O9 occupies a distinct position within the landscape of manganese-based perovskite-like materials. Unlike more common, highly stable compounds in this family, its position above the thermodynamic hull highlights the challenges and opportunities in synthesizing metastable phases with semimetallic properties.
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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