Anisotropy of quantum diffusion of 3He in hcp 4He
V. A. SlyusarevPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovM. A. Strzhemechnyı̆Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kov
ABI
Аннотация
Within the framework of the known hopping approximation we calculate the diffusion coefficient D with allowance for the hcp symmetry and the anisotropic impurity–impurity interaction potential. The estimated value 20.5 cm3/mole for the specific volume indicates that the values of D along the c axis and in the basal plane differ by a factor of almost three.
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