Diffusion of Dilute He^3 Impurities in Solid He^4

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概要

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• It is expected that a He^3 atom in solid He^4 travels through the lattice due to the tunneling effect and behaves as a quasi-particle, "impuriton". We calculate the spin diffusion coefficient D of impuritons, using a realistic interaction between impuritons and obtain D≃(J_<34>a)^2/xV_0, where J_<34> is the He^3-He^4 exchange constant, a the lattice constant, x the concentration of He^3 impurities and V_0 the strength of the interaction. It is shown that J_<34> is the same order of magnitude as the He^3-He^3 exchange constant in pure He^3 solid at the same molar volume.

• 社団法人日本物理学会の論文
• 1974-11-15

著者

• Yamashita Yoshifumi

  Physics Department Kyoto University

関連論文

• Diffusion of Dilute He^3 Impurities in Solid He^4
• Critical Exponent of Sound Attenuation above λ-Transition

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