Transport properties in the superfluid phase of dilute sup 3 He- sup 4 He mixtures near T sub. lambda

Journal Article · Sun Apr 01 04:00:00 EDT 1990 · Journal of Low Temperature Physics; (USA)

DOI:https://doi.org/10.1007/BF00683455· OSTI ID:6484265

Zhong, F; Tuttle, J; Meyer, H ^[1]

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1. Duke Univ., Durham, NC (USA)

A cell for the simultaneous measurements of temperature and {sup 3}He concentration gradients, induced by a heat current Q across a fluid helium layer is described. This cell is operated over the temperature range 1.7{le}T<2.5 K. Measurement of the anomalous boundary resistance {Delta}R{sub b} in superfluid {sup 4}He(X({sup 3}He){approximately}2 ppb) near T{sub {lambda}} for heat currents between 8 and 47 {mu}W/cm{sup 2} are described. The results for both the weakly divergent and the heat-dependent, more strongly divergent contributions to {Delta}R{sub b} are presented.

• OSTI ID: 6484265
• Journal Information: Journal of Low Temperature Physics; (USA), Journal Name: Journal of Low Temperature Physics; (USA) Vol. 79:1-2; ISSN 0022-2291; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DATA
DATA ANALYSIS
DISPERSIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HELIUM 3
HELIUM 4
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
MEASURING INSTRUMENTS
MEASURING METHODS
MIXTURES
NUCLEI
NUMERICAL DATA
PHYSICAL PROPERTIES
STABLE ISOTOPES
SUPERFLUIDITY
THERMAL CONDUCTIVITY
THERMAL DIFFUSIVITY
THERMODYNAMIC PROPERTIES
TRANSPORT THEORY