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Magnetic distortion of the B-like phase of superfluid He-3 confined in aerogel.

Research output: Contribution to journalJournal article

Published

Journal publication date02/2008
JournalJournal of Low Temperature Physics
Journal number3-4
Volume150
Number of pages8
Pages445-452
Original languageEnglish

Abstract

We present measurements of the response of the B-like phase of superfluid He-3 in aerogel to an applied flow. The measurements are made using a cylindrical piece of 98% silica aerogel attached to a vibrating wire resonator. The resonator is immersed in superfluid He-3 at 16 bar pressure and at low temperatures. A variable magnetic field is applied such that the aerogel-confined superfluid may exist in the A-like or B-like phase, while the surrounding fluid is always in the bulk B-phase. The resonator response reveals a velocity dependence of the inferred aerogel-confined superfluid fraction. We discuss measurements of the temperature and magnetic field dependence of the response in the B-like phase. We find a significant field dependence indicating a strong magnetic distortion of the B-like phase order parameter.