NiMnAs

metal

· NiMnAs

NiMnAs is an intermetallic compound composed of nickel, manganese, and arsenic, belonging to the family of magnetic shape-memory alloys and Heusler alloys. This is primarily a research material studied for its ferromagnetic properties and potential magnetocaloric effects, rather than a widely commercialized engineering alloy. The material is of interest in advanced applications requiring magnetic functionality combined with shape-memory behavior, though industrial adoption remains limited due to processing challenges, brittleness concerns, and the presence of arsenic (a toxic element restricting use in some jurisdictions).

magnetic refrigeration (research)shape-memory actuators (experimental)magnetocaloric devicesHeusler alloy systemsfunctional materials researchmagnetic sensor development (early-stage)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Magnetic Moment(μB)	4.000	μB	—
Saturation Magnetization(μB,sat)	828.6	μB	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2500	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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.

NiMnAs

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control