Er4 Si4 Rh4

semiconductor

· Er4 Si4 Rh4

Er₄Si₄Rh₄ is an intermetallic compound combining erbium, silicon, and rhodium—a quaternary system that falls into the family of rare-earth transition metal silicides. This is a research-phase material studied for potential semiconductor or functional applications, rather than an established commercial compound; its properties reflect the interplay between rare-earth electronic structure and the metallic bonding character of rhodium-silicon interactions. While not yet deployed in volume production, compounds in this chemical family are investigated for thermoelectric conversion, high-temperature structural applications, and electronic device research due to their tunable electronic and thermal characteristics.

Thermoelectric researchHigh-temperature materials developmentIntermetallic semiconductorsRare-earth metallurgy researchElectronic materials experimentation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	19,497.9	ksi	—
Shear Modulus(G)	9,366.5	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00390	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.043	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.

Er4 Si4 Rh4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control