Rb3Ge — Properties & Data | MatWorld

Rb3Ge

ceramic

· JVASP-38246· Rb3Ge

Rb3Ge is an intermetallic ceramic compound composed of rubidium and germanium, belonging to the family of alkali-metal germanides. This is primarily a research material studied for its structural and electronic properties rather than a widely commercialized engineering ceramic. The compound is of interest in solid-state chemistry and materials science for understanding ionic bonding behavior, lattice dynamics, and potential applications in specialized electronic or thermoelectric contexts where alkali-germanium phases may offer unique property combinations.

Research and developmentSolid-state chemistryThermoelectric materials (experimental)Semiconductor physics studiesIonic compound modelingHigh-temperature ceramics (exploratory)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	1,253.1	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3300	-	DFT · OptB88vdW
Shear Modulus(G)	639.6	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1147	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.9660	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000282	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000262	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	49.38	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	47.06	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.08330	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.06053	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.

Rb3Ge

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental