Ge2Sb2Te5

semiconductor

· Ge2Sb2Te5

Ge2Sb2Te5 is a chalcogenide compound belonging to the phase-change materials (PCM) family, characterized by rapid and reversible transitions between crystalline and amorphous states triggered by thermal or electrical stimuli. This material is the archetypal composition used in rewritable optical media (DVDs, Blu-rays) and is increasingly explored for next-generation non-volatile memory devices, thermal imaging, and neuromorphic computing applications where the ability to switch between distinct physical states is exploited for information storage and processing.

optical data storage mediaphase-change memory (PCM) devicesnon-volatile memory systemsthermal switching applicationsneuromorphic computing researchinfrared sensing and imaging

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	3,286.6	ksi	—
Shear Modulus(G)	1,887.8	ksi	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2186	lb/in³	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.5000	eV	—
↳	0.04100	eV	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	-145.1	µV/K	—

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02240	eV/atom	—
Formation Energy(ΔHf)	-0.09939	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

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.

Ge2Sb2Te5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control