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EFFECT OF DISSIPATION ON LOW-TEMPERATURE PROPERTIES OF TUNNEL JUNCTION CHAIN.

[In Russian. / En russe.]

Author(s) : KORSUNOV S. E.

Type of article: Article

Summary

THE REGULATION OF A CHAIN OF TUNNEL JUNCTIONS WITH LINEAR OHMIC DISSIPATION IS INVESTIGATED. BOTH THE CAPACITY OF THE SUPERCONDUCTING GRANULES FORMING THE CHAIN WITH RESPECT TO THE CONDUCTING BACKING AND THE MUTUAL CAPACITY OF NEIGHBORING GRANULES ARE TAKEN INTO ACCOUNT IN THE ELECTROSTATIC ENERGY. IT IS SHOWN THAT THE LINE DIVIDING THE REGION OF EXISTENCE OF COHERENT (SUPERCONDUCTING) AND INCOHERENT STATES OF THE CHAIN AS A WHOLE IS SEPARATED BY SINGULAR POINTS INTO 4 SEGMENTS. AT ARBITRARILY LOW TEMPERATURES THE ZERO TEMPERATURE SUPERCONDUCTIVITY IS DESTROYED. IN THE QUASICLASSICAL APPROXIMATION THIS MAY BE DUE TO QUANTUM-FLUCTUATION PHASE-SLIP AT THE TUNNEL JUNCTIONS. WITHIN THE REGION OF EXISTENCE OF THE COHERENT STATE THERE ARE 2 AUXILIARY PHASE TRANSITION LINES ON WHICH THE LAMBDA-INDEX EXPERIENCES A DISCONTINUITY.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1990-0059
  • Languages: Russian
  • Source: Z. eksp. teor. Fiz. - vol. 95 - n. 3
  • Publication date: 1989/03
  • Document available for consultation in the library of the IIR headquarters only.

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