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Author (up) Cotignola, J.M.; de la Cruz, F.; de la Cruz, M.E.; Platzeck, R.P. url  doi
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  Title Thermal Conductivity of Polycrystalline Zinc below 1 K Type Journal Article
  Year 1967 Publication Review of Scientific Instruments Abbreviated Journal  
  Volume 38 Issue 1 Pages 87-92  
  Keywords  
  Abstract Measurements of the thermal conductivity of samples of polycrystalline zinc of thickness 0.1 mm have been carried out between 0.12 and 0.9°K in the normal as well as in the superconducting state to investigate the usefulness of zinc as a thermal switch. The conductivity in the normal state shows a linear dependence on temperature. In the superconducting state it shows a behavior typical of electronic conductivity down to the lowest temperature measured. By applying a magnetic field between 40 and 5000 Oe, magnetoresistivity was also investigated and a strong dependence of thermal conductivity on field was found. Electrical resistivity measurements were performed in magnetic fields at liquid 4He temperatures. The resistivity was found to be independent of temperature for fields up to 9000 Oe. The effect of solder joints using Cd, Sn, In, Zn, and Wood's metal was also investigated, Cd giving the least resistance. The measurements show that zinc should be a useful thermal switch for temperatures below 0.1 and 0.2°K, though effect of a magnetic field on the normal conductivity must be carefully considered.  
  Address Centro Atómico Bariloche – Instituto Balseiro  
  Corporate Author Thesis  
  Publisher AIP Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ pedrazp @ cotignola:87 Serial 533  
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