1976
DOI: 10.1007/bf00116308
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The paramagnon model and some properties of superfluid 3He

Abstract: The paramagnon model for the BCS-type state of superfluid 3He is applied to calculate the following properties in the ABM and BW states: the pressure dependence of the initial slope of the normalized superfluid mass density vs. 1 -T/T e ; the pressure dependence of the normalized specific heat jump at T c ; and the temperature dependence of the superfluid mass density at P = 20.7 and 27.6bar. We also calculate the temperature dependence of the normalized nuclear spin susceptibility in the BW state. We compare … Show more

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Cited by 13 publications
(6 citation statements)
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“…Detailed calculations of the superfluid density under confinement are however required. Since the ratio of superfluid fractions is unity in the weak coupling limit and our data always shows that > 1, this measurement provides further support for the presence of strong coupling even at the lowest pressures 72 .…”
Section: Discussionsupporting
confidence: 76%
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“…Detailed calculations of the superfluid density under confinement are however required. Since the ratio of superfluid fractions is unity in the weak coupling limit and our data always shows that > 1, this measurement provides further support for the presence of strong coupling even at the lowest pressures 72 .…”
Section: Discussionsupporting
confidence: 76%
“…Since the ratio of superfluid fractions is unity in the weak coupling limit and our data always shows that / 1, this measurement provides further support for the presence of strong coupling even at the lowest pressures. 69 In conclusion we have made the first torsional pendulum study of superfluid 3 He confined in a single micron sized cavity. The ease with which the B phase nucleates provides clear evidence for an intrinsic nucleation mechanism at the first order A→B transition under such confinement.…”
Section: Phase Diagrammentioning
confidence: 86%
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“…[1]) and E F (P ) (Ref. [16]) data. In the aerogel case, a smaller η value will be assumed to mimic the reduction in the SC correction in aerogel [6].…”
Section: Ginzburg-landau Theorymentioning
confidence: 99%
“…We have used E F (P ) data in Ref. [12] and have assumed δ = 300 T c0 /E F (P ) together with a typical T c0 (P )-curve of bulk 3 He. The curve with (2πτ ) −1 = 0.18 (mK) well explains why the A-like region was not easily observed on warming [5] in spite of a significantly low PCP.…”
mentioning
confidence: 99%