Thermal resistance between liquid 3He and copper potassium tutton salt
Description
The thermal resistance between liquid 3He and copper potassium tutton salt (CPS) has been measured through its magnetic ordering temperature (T/sub c/ = 29.6 mK). The thermal resistance R for pure 3He has a broad minimum near 60 mK and increases continuously through T/sub c/ with decreasing temperature, except for a dip at T/sub c/. Below T/sub c/, R is proportional to T/sup -1.5/. Effects of 4He coating have been studied by stepwise addition of 4Me into liquid 3He. The thermal resistance increased drastically for the liquid containing 150 ppm4Me and more for 95% 4He. By sudden depressurization of the liquid 3He containing 480 ppm 4He, a considerable decrease of R was observed. Since R for pure 3He was much smaller than the calculated Kapitza resistance, the present experimental results indicate the existence of surface magnetic coupling between liquid 3He and CPS
Additional details
Publishing Information
- Journal Title
- J. Low Temp. Phys.
- Journal Volume
- 66
- Journal Issue
- 1-2
- Series
- J. Low Temp. Phys.
- Journal Page Range
- 69-84
- ISSN
- 0022-2291
- CODEN
- JLTPA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19015591
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- COPPER COMPOUNDS; ELECTRON-PHONON COUPLING; FERROMAGNETIC MATERIALS; HELIUM 3; HELIUM 4; J-J COUPLING; MAGNETIC FIELDS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; MATERIALS TESTING; ORDER-DISORDER TRANSFORMATIONS; POTASSIUM COMPOUNDS; POWDERS; PRESSURE DEPENDENCE; QUANTITY RATIO; RELAXATION TIME; SALTS; SPECIFIC HEAT; SPIN; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TEST FACILITIES; THERMAL BOUNDARY RESISTANCE; TRANSITION TEMPERATURE; ULTRALOW TEMPERATURE
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ANGULAR MOMENTUM; COUPLING; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HELIUM ISOTOPES; INTERMEDIATE COUPLING; ISOTOPES; LIGHT NUCLEI; MAGNETIC MATERIALS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MATERIALS; NUCLEI; PARTICLE PROPERTIES; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; STABLE ISOTOPES; TESTING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS