Primary and secondary nucleation of the transition between the A and B phases of superfluid He-3.

Bartkowiak, M. and Fisher, Shaun N. and Guénault, A.M. and Haley, Richard P. and Pickett, George R. and Plenderleith, G. N. and Skyba, P. (2000) Primary and secondary nucleation of the transition between the A and B phases of superfluid He-3. Physical review letters, 85 (20). pp. 4321-4324. ISSN 1079-7114

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Abstract

We have studied nucleation in superfluid He-3 across the A-B phase transition driven by a magnetic field, in a controllable environment at very low temperatures. Both B --> A and A --> B secondary nucleation appear to be governed by the survival of pockets of the new phase trapped at surfaces. We find that, at fields near B-AB, primary A --> B nucleation cannot be triggered by ionizing or neutron irradiation even at very high intensities; In our cell primary A --> B nucleation can only be triggered externally by mild mechanical shock.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
?? NUCLEATIONPHYSICS AND ASTRONOMY(ALL)QC PHYSICS ??
ID Code:
23498
Deposited By:
Deposited On:
26 Jan 2009 10:57
Refereed?:
Yes
Published?:
Published
Last Modified:
17 Sep 2023 00:28