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.
References in periodicals archive ?
As a result, Miller and his group have obtained snapshots of the aluminum crystal structure taken 500 fs apart (for you movie buffs: that's 2x[10.sup.12] frames per second!) showing how first the long range order disappears and then the short range order, until after about 3.5 ps the diffraction pattern is identical to the pattern of liquid A1. Within the first 1.5 ps, the temperature in the crystal rises to 1400 K, which is well above the melting temperature of 935 K.