Bartkowiak, M. and Daley, S. W. J. and Fisher, Shaun N. and Guénault, A.M. and Plenderleith, G. N. and Haley, Richard P. and Pickett, George R. and Skyba, P. (1999) Thermodynamics of the A-B phase transition and the geometry of the A-phase gap nodes in superfluid He-3 at low temperatures. Physical Review Letters, 83 (17). pp. 3462-3465. ISSN 1079-7114Full text not available from this repository.
Since the A phase of superfluid He-3 has an energy gap with nodes while the B phase has a uniform gap, the entropies of the two phases are very different at low temperatures. The latent heat of the A-B transition is thus relatively large and provides a convenient probe for examining the structure of the A-phase gap nodes at low temperatures. We report here measurements of the latent heal down to similar to 150 mu K which show that at least to this temperature, the A-phase gap near the nodes is increasing linearly with deviation of the k vector from the nodal line. From the measurements of the latent heat and of the transition field B-AB we can determine the magnetization difference between the two phases.
|Journal or Publication Title:||Physical Review Letters|
|Uncontrolled Keywords:||Superfluid He-3|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited By:||Dr Richard P. Haley|
|Deposited On:||29 Jan 2009 16:43|
|Last Modified:||17 Jul 2013 10:23|
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