Abstract

Recently Feng, Schiffer and Osheroff found that the thermal conduction in single crystals of solid3He is anisotropic. The observed anisotropy is in substantial agreement with the estimation for the magnon zoneboundary energies obtained from our calculated spin wave spectrum, in which the exchange processes up to four spins were taken into account. To refine on the previous calculation we have extended the exchange processes up to six spins.

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