Dy3CuSiSe7 — Properties & Data | MatWorld

Dy3CuSiSe7

metal

· JVASP-56248· Dy3CuSiSe7

Dy3CuSiSe7 is a ternary intermetallic compound combining dysprosium (a rare-earth element), copper, silicon, and selenium. This is a research-phase material rather than a commercial alloy, studied primarily for its potential electromagnetic and thermoelectric properties in the rare-earth materials family. Applications remain largely experimental, with interest focused on high-performance electronics, magnetism-based devices, and advanced energy conversion systems where rare-earth compounds offer performance advantages over conventional metallic alternatives.

thermoelectric devices (research)rare-earth magnetism applicationssemiconductor researchhigh-performance electronics (experimental)energy conversion systems (development)materials science research

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	6.817	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	1.677	eV	DFT · OptB88vdW
↳	2.156	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	18.25	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	9.488	-	DFT · OptB88vdW
↳	7.173	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.6800	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.303	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1304	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00126	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00102	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-187.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	255.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	19.65	%	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)	-1.365	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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Dy3CuSiSe7

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Electrical Properties

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