Y2Mn2O7

ceramic

· JVASP-55309· Y2Mn2O7

Y2Mn2O7 is a pyrochlore-structured ceramic oxide combining yttrium and manganese, belonging to the family of rare-earth manganates studied primarily for functional and electrochemical applications. This material is investigated for potential use in energy storage systems, catalysis, and magnetocaloric devices, where its crystal structure and magnetic properties offer advantages in high-temperature stability and ionic conductivity compared to conventional spinels and perovskites.

energy storage electrodessolid-state battery electrolytescatalytic applicationsmagnetocaloric refrigerationhigh-temperature ceramicsresearch/development phase

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1945	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.113	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	138.4	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	1.260	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.870	me	DFT · OptB88vdW · 27°C
Thermoelectric Power Factor(PF)2 entries	0.00128	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000788	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-259.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	359.5	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.841	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.

Y2Mn2O7 — Properties & Data | MatWorld

Y2Mn2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental