HoO3 — Properties & Data | MatWorld

HoO3

ceramic

· JVASP-35632· HoO3

Holmium trioxide (HoO3) is a rare-earth ceramic oxide compound belonging to the lanthanide oxide family. While not widely established in conventional engineering applications, holmium oxides are studied primarily in advanced optical, magnetic, and nuclear materials research due to holmium's unique electronic and magnetic properties. This material represents an emerging research compound rather than a mature industrial material; it is of interest to specialists in rare-earth ceramics, optoelectronics, and nuclear/radiation applications where lanthanide elements offer distinctive capabilities.

rare-earth research ceramicsoptical materials developmentmagnetic ceramicsnuclear/radiation applicationsadvanced materials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.862	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.1420	eV	DFT · OptB88vdW
↳	1.991	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	96.63	-	DFT · OptB88vdW
↳	2.340	-	DFT · TBmBJ
Magnetic Moment(μB)	6.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000112	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000135	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-68.79	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	70.23	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	23.16	%	DFT · TBmBJ

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, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.6901	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.727	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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.

HoO3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental