liquid A1
liquid A1
[′lik·wəd ′ā ′wən] (cryogenics)
A phase of liquid helium-3 intermediate between liquid A and liquid B that appears only in the presence of a magnetic field and then only in a narrow portion of the pressure-temperature diagram, and in which only pairs of one of the three possible nuclear spin states are superfluid. Also known as A1 phase.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.