Anisotropic relaxation time T′<Subscript>2</Subscript> of solid <Superscript>3</Superscript>He

This paper investigates an anisotropy of the adiabatic relaxation time T <Subscript>2</Subscript>′ for single crystalline bcc <Superscript>3</Superscript>He. No difference in the calculation of T <Subscript>1</Subscript>(0) was revealed between the nearest-neighbor anti-ferromagnetic Heisenberg model and the multiple exchange model. However, we may distinguish these two models by the anisotropy of the adiabatic relaxation time T <Subscript>2</Subscript>′. The results presented in this paper are compared with experimental observations. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013