He in Aerogel
نویسندگان
چکیده
Within the phenomenological approach a criterion for a choice of the order parameter of the superfluid phases of 3 He in aerogel in a vicinity of the transition temperature is derived. The order parameter of bulk B-phase of 3 He meets this criterion and that of the bulk A-phase doesn't. A class of order parameters of Equal Spin Pairing (ESP) type meeting the derived criterion is discussed. Order parameters belonging to this class are proposed as candidates for the observed Alike superfluid phase of liquid 3 He in aerogel. Effect of magnetic field on the order parameters of this class is considered.
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