Ge4Te4
Ge4Te4 has a DFT band gap of 0.48 eV across 5 reported structures in 3 space groups. Cross-validated across 1 computational databases.
At a glance
Key Properties
Cross-validated computational properties for Ge4Te4, aggregated across 1 database.
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.
0.48 eV
Range across DFT structures
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.
—
Best (lowest) across sources
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.
Not assessed
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
5
1 database, 3 space groups
Synthesis
Synthesis Routes
Literature-extracted synthesis procedures targeting Ge4Te4.
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Reference
Frequently Asked Questions
Common questions about Ge4Te4, answered from cross-validated data.
What is the band gap of Ge4Te4?
Ge4Te4 has a DFT-computed band gap of 0.48 eV across 5 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
More questions
Is Ge4Te4 a metal, semiconductor, or insulator?
DFT predicts a band gap of up to 0.48 eV (a semiconductor). Measured gaps are typically larger.
How many polymorphs of Ge4Te4 are known?
5 structures of Ge4Te4 are reported across 1 database, spanning 3 distinct space groups.
How is Ge4Te4 synthesized?
Literature-reported routes for Ge4Te4 include solid state (3 procedures documented).
What elements does Ge4Te4 contain?
Ge4Te4 contains Ge and Te (2 elements).
Where does the data for Ge4Te4 come from?
Ge4Te4 data is cross-referenced from latticegraph.
Explore
Related Compounds
Other Phase-Change Memory Materials in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze Ge4Te4 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 85 source databases.
Explore the Platform →