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NASA NTRS · 20000056905

T(sub lambda) Depression by a Heat Current Along the lambda-Line

Abstract

We report measurements of the depression of the superfluid transition temperature by a heat current (1 less than or = Q less than or = 100 microW/sq cm) along the lambda-line (SVP less than or = P less than or = 21.6 bar). At P = 21.6 bar, measurements were also performed in a reduced gravity (0.2g). Experimental results show that the pressure dependence of the depression and the gravity effect on the measurements are small, in qualitative agreement with theoretical predictions. Keywords: superfluid helium; Lambda transition; heat current

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BibTeXRIS

Liu, Yuanming, Larson, Melora, Iraelsson, Ulf E.. 1999-06-15. T(sub lambda) Depression by a Heat Current Along the lambda-Line. https://ntrs.nasa.gov/citations/20000056905

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