New singularities in quantum diffusion of He3 in solid helium
Grigor'ev V.N. , Esel'son B.N., Mikheev V.A.
We measured the diffusion coefficient of an He3 impurity in the HCP phase of solid helium at increased density. The transition from vacancion diffusion to quantum diffusion of the impuritons was observed for the first time. A strong dependence of the volume integral J3U on the density of the solid helium was observed.
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