TaCu₃Se₄ is an intermetallic compound combining tantalum, copper, and selenium, belonging to the family of ternary metal chalcogenides. This is a research-phase material studied primarily for its electronic and structural properties rather than an established industrial compound. The material family is of interest in semiconductor research, thermoelectric device development, and solid-state chemistry, where the combination of a refractory metal (tantalum) with copper and a chalcogen (selenium) creates potential for novel electronic behavior, though practical engineering applications remain limited to specialized research contexts.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 4,565 | ksi | — | ||
Shear Modulus(G) | 3,146.3 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2238 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.587 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 7.320 | - | — | ||
| ↳ | 7.404 | - | — | ||
| ↳ | 7.715 range 7.598–7.831median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.03648 | C/m² | — | ||
| ↳ | 0.06943 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -307.3 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4929 | eV/atom | — |