Co4 Er2

semiconductor

· Co4 Er2

Co4Er2 is an intermetallic compound combining cobalt and erbium, belonging to the rare-earth transition metal semiconductor family. This material is primarily of research and development interest rather than established industrial production, with potential applications in high-temperature electronics and magnetic device research where rare-earth elements provide enhanced functional properties. The cobalt-erbium system is investigated for specialized applications requiring the combined benefits of cobalt's ferromagnetic characteristics and erbium's rare-earth electronic properties.

research semiconductorsrare-earth intermetallicshigh-temperature electronicsmagnetic material systemsadvanced ceramics developmentsolid-state device research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	146.6	GPa	—
Shear Modulus(G)	49.60	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.02560	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2900	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.

Co4 Er2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control