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 - Asymmetrical nucleation of the A-B transition in superfluid He-3.
AU - Bartkowiak, M.
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Plenderleith, G. N.
AU - Pickett, George R.
AU - Skyba, P.
PY - 2000/7
Y1 - 2000/7
N2 - Using a magnetic field we can induce nucleation in superfluid He-3 both ways across the A-B phase boundary, at temperatures below 0.2T(c). The nucleation takes place in a quasiparticle black-body radiator in a variable magnetic field profile and is detected from the associated temperature jump. Before A-phase will nucleate, the parent B-phase must be overmagnetised by a history-dependent amount. Similarly, B-phase nucleation requires a degree of undermagnetisation. However, the transition is asymmetric and the history dependences are quite different. (C) 2000 Elsevier Science B.V. All rights reserved.
AB - Using a magnetic field we can induce nucleation in superfluid He-3 both ways across the A-B phase boundary, at temperatures below 0.2T(c). The nucleation takes place in a quasiparticle black-body radiator in a variable magnetic field profile and is detected from the associated temperature jump. Before A-phase will nucleate, the parent B-phase must be overmagnetised by a history-dependent amount. Similarly, B-phase nucleation requires a degree of undermagnetisation. However, the transition is asymmetric and the history dependences are quite different. (C) 2000 Elsevier Science B.V. All rights reserved.
KW - He-3 superfluid
KW - nucleation
KW - ultralow temperatures
U2 - 10.1016/S0921-4526(99)02485-0
DO - 10.1016/S0921-4526(99)02485-0
M3 - Journal article
VL - 284-28
SP - 242
EP - 243
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 1
ER -