Surface Magnetism of 3He in Grafoil
Tóm tắt
We report the magnetic susceptibility of 3He in Grafoil filled with pure liquid3He at 27.6 bar and at temperatures down to 0.1 mK with a cw NMR method. It is composed of two contributions: from the bulk liquid and from the adsorbed layer of 3He on the Grafoil surface. The latter shows a well-known strong ferromagnetic tendency and can be fitted to a Curie–Weiss law in the high temperature region. The obtained Weiss temperature is surprisingly large compared with the previous ones.
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