Pomeranchuk cooling (named after
Isaak Pomeranchuk) is the phenomenon in which liquid
helium-3 will cool if it is compressed
isentropically when it is below 0.3 K. This occurs because helium-3 has the unusual property that its solid state can have a higher entropy than its liquid state. The effect was first observed by Yuri Anufriev in 1965.[1] This can be used to construct a
cryogenic cooler.[2]
Pomeranchuk cooling (named after
Isaak Pomeranchuk) is the phenomenon in which liquid
helium-3 will cool if it is compressed
isentropically when it is below 0.3 K. This occurs because helium-3 has the unusual property that its solid state can have a higher entropy than its liquid state. The effect was first observed by Yuri Anufriev in 1965.[1] This can be used to construct a
cryogenic cooler.[2]