Innovative cryogenic cooling material using spin frustration from abundant elements.

ABSTRACT: Cryogenic cooling technology is essential for modern applications, such as magnetic resonance imaging and quantum computing; however, it currently relies heavily on critical resources such as helium and heavy rare-earth elements. As demand for cryogenic cooling increases, developing alternative technologies that reduce reliance on these scarce resources is crucial. This study introduces regenerator materials from abundant elements-copper, iron, and aluminum-that function as Gifford-McMahon (GM) cryocoolers. These materials achieve cryogenic cooling through the spin frustration effect, where competing magnetic interactions enhance magnetic heat capacity. CuFe₁₋ₓAlₓO₂ demonstrates effective cooling capacity at the helium condensation temperature comparable with that of conventional heavy rar

SUBMITTER: Terada N 

PROVIDER: S-EPMC12722759 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature