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Enhancedp-wave pairing in polarized3He-4He mixtures

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Abstract

The potential model of Bardeen, Baym, and Pines is generalized to describe polarized3He-4He-mixtures. The zero-field strength and range of the potential as a function of3He-density and pressure are determined by transport data and, for the first time, the magnetostriction. It is found that at higher pressures the magnetostriction leads to a3He-density-dependence in the strength of the potential, an effect which only negligibly appears when fitting the transport data. The model predicts ap-wave superfluid transition with a transition temperatureT c p which is highest at the maximum solubility. Including the correction for the polarization-dependence of the maximum solubility, a large increase inT c p with polarization is found. The size of the enhancement depends on the zero fieldT c p which in turn depends on which set of normal state data we fit.

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van de Haar, P.G., Frossati, G. & Bedell, K.S. Enhancedp-wave pairing in polarized3He-4He mixtures. J Low Temp Phys 77, 35–59 (1989). https://doi.org/10.1007/BF00681878

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Keywords

  • High Pressure
  • Normal State
  • State Data
  • Magnetic Material
  • Potential Model