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Fermi-gas approach to the problem of superfluidity in three- and two- dimensional solutions of ³He in ⁴He

M. Yu. Kagan

P. L. Kapitza Institute for Physical Problems, Russian Academy of Sciences, Moscow

Abstract: New experimental approaches and theoretical results concerning the search for superfluidity in three- and two-dimensional solutions of ³He in ⁴He are reviewed. Estimates for the s-wave and p-wave pairing temperatures are given for both unpolarised and polarised cases. The role of monolayers and submonolayers of ³He as an ideal-purity two-dimensional system for experimental verification of various current theories of high-temperature superconductivity is emphasised.

PACS: 67.60.-g

Received: January 1, 1994

DOI: 10.3367/UFNr.0164.199401c.0077

 English version: Physics–Uspekhi, 1994, 37:1, 69–79

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