Ba2La2Mn4O11
Ba2La2Mn4O11 is a metastable, semimetallic complex oxide used primarily in fundamental materials research.
About Ba2La2Mn4O11
Ba2La2Mn4O11 is a complex quaternary oxide composed of barium, lanthanum, manganese, and oxygen. As a metastable phase, it represents a unique structural arrangement that offers insights into the intricate interplay between transition metal oxidation states and lattice geometry.
This material exhibits near-zero-gap electronic characteristics, positioning it as a semimetallic compound. Its electronic structure is of significant interest for fundamental studies in condensed matter physics, particularly regarding how structural variations influence charge transport in manganese-based oxide systems.
Key Properties
Cross-validated computational properties for Ba2La2Mn4O11, 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 Ba2La2Mn4O11, 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. |
|---|---|---|---|---|---|
| Cmmm (No. 65) | orthorhombic | 0.09 | 0.0558 | -8.305 | 6.17 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 6.17 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 6.65 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 6.43 |
| — | — | — | — | — | 4.90 |
Applications
Where Ba2La2Mn4O11 is used.
Frequently Asked Questions
Common questions about Ba2La2Mn4O11, answered from cross-validated data.
What is Ba2La2Mn4O11?
Ba2La2Mn4O11 is a metastable, semimetallic complex oxide used primarily in fundamental materials research.
What is Ba2La2Mn4O11 used for?
What is the band gap of Ba2La2Mn4O11?
Is Ba2La2Mn4O11 a metal, semiconductor, or insulator?
Is Ba2La2Mn4O11 thermodynamically stable?
What is the crystal structure of Ba2La2Mn4O11?
What is the density of Ba2La2Mn4O11?
How many polymorphs of Ba2La2Mn4O11 are known?
What elements does Ba2La2Mn4O11 contain?
Where does the data for Ba2La2Mn4O11 come from?
How It Compares
As a member of the broader family of complex manganese-based oxides, Ba2La2Mn4O11 occupies a distinct niche due to its metastable nature and semimetallic behavior. While many related oxides are characterized by insulating or semiconducting properties, this compound highlights the potential for tuning electronic states through specific elemental combinations within the barium-lanthanum-manganese-oxygen system.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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