Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Primary and secondary nucleation of the transition between the A and B phases of superfluid He-3.
AU - Bartkowiak, M.
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Pickett, George R.
AU - Plenderleith, G. N.
AU - Skyba, P.
PY - 2000/11
Y1 - 2000/11
N2 - 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.
AB - 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.
KW - NUCLEATION
U2 - 10.1103/PhysRevLett.85.4321
DO - 10.1103/PhysRevLett.85.4321
M3 - Journal article
VL - 85
SP - 4321
EP - 4324
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 20
ER -