Sm3CuGeS7 — Properties & Data | MatWorld

Sm3CuGeS7

metal

· JVASP-26773· Sm3CuGeS7

Sm₃CuGeS₇ is a ternary chalcogenide compound combining samarium (a rare earth element), copper, germanium, and sulfur into a crystalline metallic structure. This is a research-phase material studied primarily for its potential in thermoelectric and quantum materials applications, rather than an established commercial alloy. The compound belongs to the family of rare-earth transition-metal chalcogenides, which are explored for semiconducting, topological, or strongly correlated electron properties that conventional metals cannot provide.

thermoelectric energy conversion (research)quantum materials studiessolid-state physics researchrare-earth compound synthesislow-temperature physics experimentsmaterials discovery and characterization

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	71.24	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)	37.21	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	5.289	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	1.780	eV	DFT · OptB88vdW
↳	2.377	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	17.82	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.496	-	DFT · OptB88vdW
↳	7.418	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.7000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.677	me	DFT · OptB88vdW · 27°C
Piezoelectric Modulus(eij)	0.1528	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00165	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000908	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-239.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	273.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	15.00	%	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)	-1.597	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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Sm3CuGeS7

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