In5AgTe8
In5AgTe8 is a stable semiconducting chalcogenide used in the development of phase-change memory devices.
About In5AgTe8
In5AgTe8 is a thermodynamically stable semiconducting compound within the chalcogenide family. Its ability to exist in multiple structural configurations makes it a compelling candidate for advanced memory applications where rapid, reversible state transitions are required.
As a member of the phase-change material class, it leverages its electronic properties to facilitate data storage. Its stability on the convex hull suggests a robust material system that maintains structural integrity during the cyclic switching processes essential for modern computing hardware.
Key Properties
Cross-validated computational properties for In5AgTe8, 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 In5AgTe8, 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. |
|---|---|---|---|---|---|
| C2 (No. 5) | monoclinic | 0.18 | 0.0000 | -24.550 | 5.60 |
| P-42m (No. 111) | tetragonal | 0.29 | 0.0041 | -24.546 | 5.60 |
| P-42m (No. 111) | — | — | — | — | — |
| P-42m (No. 111) | Tetragonal | — | — | — | 5.50 |
| P-42m (No. 111) | Tetragonal | — | — | — | 5.65 |
| C2 (No. 5) | Monoclinic | — | — | — | 5.59 |
| P-42m (No. 111) | Tetragonal | — | — | — | 5.71 |
| C2 (No. 5) | Monoclinic | — | — | — | 5.37 |
| C2 (No. 5) | Monoclinic | — | — | — | 5.54 |
Applications
Where In5AgTe8 is used.
Frequently Asked Questions
Common questions about In5AgTe8, answered from cross-validated data.
What is In5AgTe8?
In5AgTe8 is a stable semiconducting chalcogenide used in the development of phase-change memory devices.
What is In5AgTe8 used for?
What is the band gap of In5AgTe8?
Is In5AgTe8 a metal, semiconductor, or insulator?
Is In5AgTe8 thermodynamically stable?
What is the crystal structure of In5AgTe8?
What is the density of In5AgTe8?
How many polymorphs of In5AgTe8 are known?
What elements does In5AgTe8 contain?
Where does the data for In5AgTe8 come from?
How It Compares
Within the phase-change memory materials class.
In5AgTe8 occupies a distinct niche compared to classic phase-change materials like GeTe or Ge2Sb2Te5. While those materials are widely recognized for their rapid switching speeds, In5AgTe8 offers a different compositional balance involving indium and silver, which alters the kinetic and thermodynamic landscape of the phase transition compared to simpler binary systems like Ag2Te or AgTe.
Related Compounds
Other Phase-Change Memory Materials in the database.
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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