Ravi MehrotraLori S. GoldnerGuenter AhlersM. Larson, N. Mulders, R. Mehrotra, L.S. Goldner, and G. Ahlers. "Critical properties of 4He in aerogel near the λ-line". Journal of Low Temperature Physics, 89(1/2) :79-89, 1992.
We determined the superfluid density ρfrom the speed of heat pulses, using a hydrodynamic model that contains coupling between the aerogel and the helium. To investigate the universality of the exponent of ρ, measurements of ρwere taken from saturated vapor pressure to 29 bars. Fitting ρwith...
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3He in 99.5% Porous Aerogel at the Normal-Superfluid Transition We have used a torsional oscillator to measure the superfluid density and dissipation near the superfluid transition of 3 He in aerogel of 99.5% porosity... SCJ Kingsley,G Lawes,A Golov,... - 《Journal of Low Temperature Physic...
thermal expansion/ Lambda pointHe-filled aerogelsthermal expansionelastic propertiespore size4He-SiO 2/ A6740K Thermodynamic properties (liquid helium-4)/ He-SiO2/int SiO2/int He/int O2/int Si/int O/int SiO2/bin O2/bin Si/bin O/bin He/el...
Thermal-Conductivity of He-4 in Aerogel Near the Lambda-TransitionKahn, A MAhlers, G
Background pions and protons were eliminated by aerogel veto-counters and several TOF cuts, respectively. The tracking of remaining kaon-like events through four horizontally and two vertically resolving drift chambers showed no evidence for respective g.s. transitions above background. Upper limits ...
Recent results of superfluid density and heat capacity measurements of 4 He confined in porous Vycor and aerogel glasses of very high porosity are reviewed... MHW Chan - 《Physica B Condensed Matter》 被引量: 27发表: 1991年 Specific Heat of Helium Confined to Cylinders Near the Lambda Point ...
Torsional oscillator measurements of [sup 3]He-[sup 4]He mixtures confined in aerogel show evidence of a well defined phase separation region. This region ... J Ma,SB Kim,L. W. Hrubesh,... - Journal of Low Temperature Physics; (United States) 被引量: 8发表: 1993年 Specific Heat of...