Fast Diffusion Process in Quenched hcp Dilute Solid $^3$He-$^4$He Mixture - Condensed Matter > Other Condensed MatterReportar como inadecuado




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Abstract: The study of phase structure of dilute $^3$He - $^4$He solid mixture ofdifferent quality is performed by spin echo NMR technique. The diffusioncoefficient is determined for each coexistent phase. Two diffusion processesare observed in rapidly quenched non-equilibrium hcp samples: the firstprocess has a diffusion coefficient corresponding to hcp phase, the second onehas huge diffusion coefficient corresponding to liquid phase. That is evidenceof liquid-like inclusions formation during fast crystal growing. It isestablished that these inclusions disappear in equilibrium crystals aftercareful annealing.



Autor: Ye.O. Vekhov, A.P. Birchenko, N.P. Mikhin, E.Ya. Rudavskii

Fuente: https://arxiv.org/







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