Mutual friction force in rotating helium II at low temperatures and near the lambda-point

Journal Article · Sun Mar 01 04:00:00 EST 1981 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00117424· OSTI ID:6333369

Sonin, E B

Mutual friction parameters in rotating He II are derived for the case of vortices kept at rest by external forces (surface pinning forces). They are different from those obtained in the theory of Hall and Vinen for the case of free vortices with the total momentum of the fluid being conserved. The difference increases if the temperature increases. In the critical region Hall and Vinen's theory fails and the mutual friction problem is solved with the help of the phenomenological theory of superfluidity fitted to the critical behavior of known physical quantities. The theory is in satisfactory quantitative agreement with experimental data on the critical behavior of the mutual friction parameters B and B'. The theory predicts a strong effect of the vortex pinning on the thermal counterflow in the critical region.

• Research Organization: A. F. Ioffe Physical Technical Institute, Academy of Sciences of USSR, Leningrad, USSR
• OSTI ID: 6333369
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 42:5; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
EVEN-EVEN NUCLEI
FLUIDS
FRICTION
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LAMBDA POINT
LANDAU LIQUID HELIUM THEORY
LIGHT NUCLEI
MOTION
NUCLEI
ORDER PARAMETERS
PHYSICAL PROPERTIES
QUANTUM FLUIDS
RELAXATION
ROTATION
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VORTICES