A model for exchange in liquid 3He
- 1 January 1980
- journal article
- Published by EDP Sciences in Journal de Physique Lettres
- Vol. 41 (14), 333-335
- https://doi.org/10.1051/jphyslet:019800041014033300
Abstract
In this letter, I remark that normal liquid 3He can be described as a set of two levels systems, which are the spins of atoms (thus I assume that, for an unknown reason, + and - polarization of each spin have different energies). The Cv /χT ratio thus obtained is close to the experimental value (χ : susceptibility, Cv : specific heat, proportional to the temperature T). Moreover, the antiferromagnetic exchange field one can introduce to fit this ratio is almost exactly the extrapolation of the solid oneKeywords
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