GeSb4Te7
ceramic· GeSb4Te7
GeSb4Te7 is a chalcogenide ceramic compound belonging to the germanium-antimony-tellurium (GST) material family, which exhibits reversible phase-change behavior between crystalline and amorphous states. This material is primarily investigated for phase-change memory (PCM) applications in data storage and computing, where rapid, electrically-induced transitions between phases enable non-volatile information storage with potentially higher density and faster switching than conventional flash memory. GeSb4Te7 represents a variation within the GST alloy system, tuned for specific thermal stability and switching characteristics relevant to next-generation memory devices and emerging neuromorphic computing architectures.
phase-change memory devicesnon-volatile data storageneuromorphic computingoptical recording mediathermal switching applicationsresearch semiconductor materials
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 21.11 | GPa | — | ||
| ↳ | 34.66 | GPa | — | ||
Poisson's Ratio(ν) | 0.2300 | - | — | ||
Shear Modulus(G)2 entries | 14.82 | GPa | — | ||
| ↳ | 24.39 | GPa | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.179 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.2280 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -229.5 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00180 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.1257 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.