EuS — Properties & Data | MatWorld

EuS

Name: EuS
Brand: MatWorld

semiconductor

· EuS

Europium sulfide (EuS) is a rare-earth compound semiconductor with a rock-salt crystal structure, combining the lanthanide element europium with sulfur. This material is primarily of research and specialized device interest rather than high-volume industrial production, valued for its unique magnetic and optical properties that arise from europium's partially filled 4f electron shell. EuS finds applications in magnetooptic devices, spin-dependent electronics, and as a model system for studying ferromagnetic semiconductors and magnetic phenomena at the nanoscale.

magnetooptic sensorsspintronics researchmagnetic semiconductor studiesquantum device prototypesthin-film heterostructuresmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	14,165.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	8,351.3	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2494	lb/in³	DFT · OptB88vdW

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

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	1.650	eV	Measured
↳	0.000	eV	DFT · OptB88vdW
↳	1.563	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	124.6	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	31.46	%	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.

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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-2.182	eV/atom	DFT · OptB88vdW
↳	-2.342	eV/atom	Measured

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.

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

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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.

EuS

Mechanical Properties

Physical Properties

Electrical Properties

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Regulatory Screening

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