Sb1Te2Tl1
Sb1Te2Tl1 is a thermodynamically stable semiconducting material utilized in the development of advanced phase-change memory technologies.

About Sb1Te2Tl1
Sb1Te2Tl1 is a semiconducting compound that occupies a stable position on the convex hull, indicating robust thermodynamic favorability. As a member of the phase-change memory material class, it is engineered for rapid, reversible transitions between structural states, which is essential for non-volatile memory technologies.
This material is primarily studied for its potential in high-density data storage applications. Its electronic character allows for the precise switching behavior required to distinguish between different logical states, making it a subject of interest for researchers optimizing the performance and longevity of memory devices.
Key Properties
Cross-validated computational properties for Sb1Te2Tl1, aggregated across 2 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 Sb1Te2Tl1, 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 | 0.13 | 0.0000 | -3.636 | 7.07 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.3519 | -3.284 | 6.25 |
| Immm (No. 71) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Sb1Te2Tl1 is used.
Frequently Asked Questions
Common questions about Sb1Te2Tl1, answered from cross-validated data.
What is Sb1Te2Tl1?
Sb1Te2Tl1 is a thermodynamically stable semiconducting material utilized in the development of advanced phase-change memory technologies.
What is Sb1Te2Tl1 used for?
What is the band gap of Sb1Te2Tl1?
Is Sb1Te2Tl1 a metal, semiconductor, or insulator?
Is Sb1Te2Tl1 thermodynamically stable?
What is the crystal structure of Sb1Te2Tl1?
What is the density of Sb1Te2Tl1?
How many polymorphs of Sb1Te2Tl1 are known?
What elements does Sb1Te2Tl1 contain?
Where does the data for Sb1Te2Tl1 come from?
How It Compares
Within the phase-change memory materials class.
Within the diverse landscape of phase-change memory materials, Sb1Te2Tl1 offers a distinct chemical profile compared to the heavily studied Ge2Sb2Te5 or Sb2Te3. While many binary and ternary tellurides in this class rely on specific stoichiometry to balance switching speed and thermal stability, the inclusion of thallium in this structure provides a unique electronic environment that differentiates its performance characteristics from common siblings like AgSbTe2.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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