The influence of pressure on the mobility of electric charges in liquid helium II

The influence of pressure on the mobility of electric charges in liquid helium II

The mobility of positive and negative charges in liquid helium II has been measured as a function of the pressure, for pressures ranging from the vapor pressure to the melting point, in the temperature range 1.9 to 1.1 deg K. The mobility of the positive charges was found to decrease with the increa...

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Bibliographic Details
Published in:Nuovo cimento Vol. 20; no. 5; pp. 949 - 955
Main Authors: Cunsolo, S., Mazzoldi, P.
Format: Journal Article
Language:English
Published: 01-06-1961
Subjects:
DENSITY
ELECTRIC CHARGES
HELIUM
LIQUIDS
LOW TEMPERATURE
MEASURED VALUES
MELTING POINTS
MOTION
PHYSICS
PRESSURE
VAPORS
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Summary:The mobility of positive and negative charges in liquid helium II has been measured as a function of the pressure, for pressures ranging from the vapor pressure to the melting point, in the temperature range 1.9 to 1.1 deg K. The mobility of the positive charges was found to decrease with the increasing pressure, but this decrease cannot be accounted for in terms of the known change in the roton density. The negative charges behave in a peculiar way which can be easily accounted for by the bubble model. For both charges an unexplained sharp break is found at about 1.3 deg K especially at the higher pressures. (auth)
Bibliography:USDOE
ISSN:0029-6341
1827-6121
DOI:10.1007/BF02733448