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Positive ion mobility in normal and superfluid 3He

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Ahonen, A. I. ; Kokko, J. ; Paalanen, M. A. ; Richardson, R. C. ; Schoepe, Wilfried ; Takano, Y.
Date of publication of this fulltext: 17 Dec 2010 07:22


We report the first measurements of negative ion motion in the superfluid phases of 3He and in the normal phase below 17 mK. Refrigeration was achieved with nuclear demagnetization of copper and we used a pulsed NMR platinum powder thermometer immersed in the liquid. In the A phase the longitudinal resonance frequency provided an additional high-resolution thermometer. In the normal phase we ...


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