Hf4 Co4 As4

semiconductor

· Hf4 Co4 As4

Hf4Co4As4 is an intermetallic semiconductor compound combining hafnium, cobalt, and arsenic in a stoichiometric ratio. This material belongs to the family of rare-earth and transition metal pnictides, which are primarily of research and developmental interest rather than established industrial production. The compound is investigated for potential applications in high-temperature electronics, thermoelectric devices, and specialized semiconductor research where the combination of refractory hafnium with magnetic cobalt and the semiconductor properties of arsenic may offer unique electronic or thermal transport characteristics.

High-temperature electronics researchThermoelectric device developmentIntermetallic semiconductor studiesMaterials science researchEmerging compound semiconductorsTransition metal pnictides

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	182.0	GPa	—
Shear Modulus(G)	87.75	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00480	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7750	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

Quality & Standards

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.

Hf4 Co4 As4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control

Quality & Standards