GeSb4Te7
GeSb4Te7 is a semiconducting phase-change material used in the development of advanced non-volatile memory devices.
About GeSb4Te7
GeSb4Te7 is a semiconducting chalcogenide compound that belongs to the critical class of phase-change memory materials. Its electronic properties and structural flexibility allow it to transition rapidly between amorphous and crystalline states, a fundamental requirement for high-speed data storage applications.
As a near-hull compound, it is considered thermodynamically stable and highly synthesizable. Its unique stoichiometry makes it a subject of significant interest for researchers aiming to optimize the switching performance and thermal endurance of future memory devices.
Key Properties
Cross-validated computational properties for GeSb4Te7, 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.
Applications
Where GeSb4Te7 is used.
Frequently Asked Questions
Common questions about GeSb4Te7, answered from cross-validated data.
What is GeSb4Te7?
GeSb4Te7 is a semiconducting phase-change material used in the development of advanced non-volatile memory devices.
What is GeSb4Te7 used for?
What is the band gap of GeSb4Te7?
Is GeSb4Te7 a metal, semiconductor, or insulator?
Is GeSb4Te7 thermodynamically stable?
How many polymorphs of GeSb4Te7 are known?
What elements does GeSb4Te7 contain?
Where does the data for GeSb4Te7 come from?
How It Compares
Within the phase-change memory materials class.
Within the diverse family of phase-change materials, GeSb4Te7 occupies a distinct compositional space compared to the widely utilized Ge2Sb2Te5. While it shares the fundamental chalcogenide framework common to GeTe and Sb2Te3, its specific ratio of germanium, antimony, and tellurium provides a unique balance of crystallization kinetics and stability that differentiates it from simpler binary systems like AgTe or In2Te3.
Related Compounds
Other Phase-Change Memory Materials in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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