Migdal-Kadanoff approach to superfluid film formation near a wall in <sup>3</sup>He-<sup>4</sup>He mixtures
A Crisanti; L Peliti; A Crisanti; Dipartimento di Fisica, Rome Univ., Italy; L Peliti; Dipartimento di Fisica, Rome Univ., Italy
Журнал:
Journal of Physics A: Mathematical and General
Дата:
1985-06-21
Аннотация:
The semi-infinite generalised Blume-Emery-Griffiths model of <sup>3</sup>He-<sup>4</sup>He mixtures with a vector order parameter is analysed by means of Migdal-Kadanoff recursion relations. Superfluid film formation near the wall is put into evidence as a Kosterlitz-Thouless type transition. At higher <sup>3</sup>H concentrations one observes the separation of a <sup>4</sup>He rich normal film near the wall.
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