The solubility of spin-polarized3He in4He and the superfluidity of3He in3He-4He mixtures |
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| Authors: | Lars P. Roobol Giorgio Frossati Kevin S. Bedell Alexander E. Meyerovich |
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| Affiliation: | (1) Kamerlingh Onnes Laboratorium, Rijksuniversiteit Leiden, 9506, NL-2300 RA Leiden, The Netherlands;(2) Present address: Royal Holloway, University of London, TW20 OEX Egham, Surrey, UK;(3) Present address: Los Alamos National laboratory - T 11, MS-B262, 87545 Los Alamos, NM, USA;(4) Present address: Department of Physics, University of Rhode Island, 02881 Kingston, RI, USA |
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| Abstract: | ![]()
We investigate the possibility of a large enhancement of the T = 0 finite solubility of3He in4He due to spin-polarization. The size of the effect depends on the fraction of3He atoms in the system. We present two different approaches for the limits of a small and a large number of3He atoms compared to the number of4He atoms. Since the possible3He superfluid phase transition depends on3He density, we calculate the consequences of this change in the solubility for its superfluid transition temperature. It is shown that for small fractions of3He, the transition temperature is enhanced mostly due to the enlargement of the up-spin Fermi sphere. In the opposite limit the transition temperature is enhanced as a result of the increased3He solubility. |
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| Keywords: | 67.60.Fp 64.75.+g 67.75.+z |
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