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Primary cryogenic thermometer based on chain of SIN tunnel junctions


A.M. Chekushkin – Post-graduate Student, Moscow Institute of Physics and Technology, Engineer, Kotelnikov IRE RAS. E-mail: M.A. Tarasov – Dr.Sc. (Phys.-Math.), Chief Researcher, Kotelnikov IRE RAS

Cryogenic microthermometer based on chain of tunnel junctions superconductor-insulator-normal metal (SIN) was developed, manufactured and researched. The thermometer was tested at the temperature range from 0,1 K to 1,1 K. Increase serial number of junction to 100 improved temperature resolution compared with single junction to 0,3 mK/√Hz, that is 3 orders of magnitude better than single junction showed.


  1. Kuzmin L.Ultra-sensitive cryogenic thermometer based on an array of the SIN tunnel junctions, Physica C. 2008. V. 468. P. 142–146.
  2. Agulo I.J., Kuzmin L.An array of SIN tunnel junctions as a sensitive thermometer, Supercond. Sci. Technol. 2008. V. 21.
  3. EHdelman V.S. Mikrokriostat rastvorenija nepreryvnogo dejjstvija. PTEH. 2012. №1. C. 154–157.
  4. Agulo I.J. Cold-Electron Bolometer with Superconductor-Insulator-Normal Metal Tunnel Junction. Thesisforthedegreeoflicentiateofengeneering. 2006. Chalmers, Sweden.


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