CrO2
semiconductorCrO₂ is a transition metal oxide semiconductor with a mixed-valence chromium structure, notable for its ferrimagnetic properties and relatively high density. Historically significant as the magnetic coating material in cassette tapes and magnetic recording media during the analog era, CrO₂ offers superior coercivity and remanence compared to earlier gamma-Fe₂O₃, making it the preferred choice for high-fidelity audio and data storage applications. While largely displaced by digital technologies, CrO₂ remains relevant in specialized magnetic applications, catalysis (particularly for oxidation reactions), and emerging research into multiferroic and spintronics devices where its magnetic-semiconductor nature is advantageous.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 28,517.5 | ksi | — | ||
| ↳ | 7,148.9 | ksi | — | ||
Poisson's Ratio(ν) | 0.2700 | - | — | ||
Shear Modulus(G)2 entries | 14,620.8 | ksi | — | ||
| ↳ | 4,135 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1557 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.2300 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Magnetic Moment(μB) | 2.000 | µB | — | ||
Seebeck Coefficient(S) | 8.717 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2192 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.892 | eV/atom | — |