Tb3CuSiS7 — Properties & Data | MatWorld

Tb3CuSiS7

metal

· JVASP-57618· Tb3CuSiS7

Tb3CuSiS7 is a rare-earth sulfide compound containing terbium, copper, and silicon in a mixed-metal chalcogenide structure. This is an experimental research material rather than an established commercial alloy, belonging to the family of quaternary metal sulfides that are investigated for their potential electronic, magnetic, or optoelectronic properties. Interest in this compound class centers on tunable band gaps, magnetic interactions, and potential applications in solid-state devices where rare-earth elements provide specialized functional properties unavailable in conventional alloys.

research and developmentrare-earth functional materialssolid-state electronicsmagnetic materials studyphotonic device explorationmaterials discovery

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.439	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.831	eV	DFT · OptB88vdW
↳	2.350	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	16.67	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.080	-	DFT · OptB88vdW
↳	5.378	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.9700	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.683	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1675	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00137	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000866	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-220.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	277.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	15.54	%	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.675	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

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Tb3CuSiS7

Physical Properties

Electrical Properties

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