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Digitale Medien

NMR study of the solidification and melting of3He in porous glasses (1986)

Shimoda, M. ; Mizusaki, T. ; Hiroi, M. ; [weitere]

Springer

Journal of low temperature physics 64 (1986), S. 285-307

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Details

ISSN: 1573-7357

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract TheP-T phase diagrams of the liquid-solid phase transition of3He in three porous glasses with different pore sizes have been determined from spin-lattice relaxation measurements in the temperature range 0.5–4.2 K. The onset of solidification of3He in the pores occurs at excess pressure over the bulk phase transition. The excess pressure depends on the pore size. A model of the phase transition in small pores which takes into account the contribution of the surface energy to the free energy is described and compared with experimental results. TheT 1 relaxation mechanism of3He in the pores is found to be due to the surface relaxation when3He is in the liquid phase and due to the relaxation of bulk solid3He when it is in the solid phase.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00681704

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