SrMg2Sb2 — Properties & Data | MatWorld

SrMg2Sb2

ceramic

· JVASP-2997· SrMg2Sb2

SrMg₂Sb₂ is an intermetallic ceramic compound belonging to the Zintl phase family, characterized by a layered crystal structure combining alkaline earth (Sr), transition metal (Mg), and pnicogen (Sb) elements. This material is primarily investigated in thermoelectric and solid-state electronics research, where its layered structure and electronic properties make it a candidate for waste heat recovery and energy conversion applications. SrMg₂Sb₂ represents an emerging class of materials aimed at improving upon traditional thermoelectrics through favorable phonon scattering and tunable carrier concentration, though it remains largely in the research and development phase rather than established industrial production.

Thermoelectric power generationWaste heat recovery systemsSolid-state electronic devicesMaterials research and developmentHigh-temperature energy conversionLayered compound semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	40.54	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	27.83	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.161	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.068	eV	DFT · OptB88vdW
↳	1.435	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	16.93	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	10.37	-	DFT · OptB88vdW
↳	8.685	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.6000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.6333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00366	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00226	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-213	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	222.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.24	%	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)	-0.8400	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.

SrMg2Sb2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental