FeAs2
metal· FeAs2
FeAs2 is an iron arsenide intermetallic compound that belongs to the family of transition metal pnictides. This material is primarily of research interest rather than established industrial production, studied for its potential electronic and structural properties in the context of iron-based superconductors and semiconductor applications. The compound's relatively high elastic stiffness and metallic character make it a candidate for investigation in high-performance electronic devices, though practical engineering applications remain limited and largely experimental.
Superconductor researchSemiconductor materials (experimental)High-performance electronicsMaterials physics researchPnictide compound studiesCondensed matter physics
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 19,384.5 | ksi | — | ||
| ↳ | 20,047.1 | ksi | — | ||
Poisson's Ratio(ν) | 0.1900 | - | — | ||
Shear Modulus(G)2 entries | 16,023.4 | ksi | — | ||
| ↳ | 16,315.3 | ksi | — |
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) | 0.2656 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.2400 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 48.93 | - | — | ||
| ↳ | 38.44 range 29.55–47.34median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -101.8 | 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.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.2520 | 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.