Ba2DyInTe5
Ba2DyInTe5 is a semiconducting quaternary telluride used in the study of phase-change memory technologies.
About Ba2DyInTe5
Ba2DyInTe5 is a complex quaternary telluride belonging to the class of phase-change memory materials. As a semiconducting compound, it exhibits electronic properties that make it a candidate for non-volatile memory applications where rapid structural transitions are required for data storage.
This material is characterized as being near-hull in terms of thermodynamic stability, suggesting it is a viable candidate for experimental synthesis. Its unique chemical composition involving barium, dysprosium, indium, and tellurium positions it as an intriguing subject for research into next-generation chalcogenide-based electronics.
Key Properties
Cross-validated computational properties for Ba2DyInTe5, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Ba2DyInTe5. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for Ba2DyInTe5, 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. |
|---|---|---|---|---|---|
| Cmc21 (No. 36) | orthorhombic | 0.62 | 0.0000 | -1.360 | — |
| Cmc21 (No. 36) | orthorhombic | 0.71 | 0.0109 | -4.514 | 5.83 |
| Cmc21 (No. 36) | orthorhombic | — | — | — | 6.19 |
Applications
Where Ba2DyInTe5 is used.
Frequently Asked Questions
Common questions about Ba2DyInTe5, answered from cross-validated data.
What is Ba2DyInTe5?
Ba2DyInTe5 is a semiconducting quaternary telluride used in the study of phase-change memory technologies.
What is Ba2DyInTe5 used for?
What is the band gap of Ba2DyInTe5?
Is Ba2DyInTe5 a metal, semiconductor, or insulator?
Is Ba2DyInTe5 thermodynamically stable?
What is the crystal structure of Ba2DyInTe5?
How many polymorphs of Ba2DyInTe5 are known?
What elements does Ba2DyInTe5 contain?
Where does the data for Ba2DyInTe5 come from?
How It Compares
Within the phase-change memory materials class.
Unlike the industry-standard phase-change materials such as Ge2Sb2Te5 or Sb2Te3, which are binary or ternary systems often optimized for rapid crystallization, Ba2DyInTe5 introduces rare-earth dysprosium into the lattice. This structural complexity differentiates it from simpler tellurides like Ag2Te or In2Te3, potentially offering unique switching characteristics or improved thermal stability profiles for specialized memory architectures.
Related Compounds
Other Phase-Change Memory Materials in the database.
Data sources & attribution
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
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