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ELECTRODYNAMICS OF SCREW SYMMETRY SUPERCONDUCTOR.

[In Russian. / En russe.]

Author(s) : DUBROVSKIJ I. M.

Type of article: Article

Summary

A SUPERCONDUCTOR HAS BEEN CONSIDERED IN THE FORM OF A HOLLOW CYLINDER WITH THE TENSOR OF PROPORTIONALITY COEFFICIENTS BETWEEN CURRENT DENSITY AND PHASE GRADIENT HAVING IN THE CYLINDRICAL COORDINATES NONDIAGONAL COMPONENTS, CONNECTING THE LONGITUDINAL CURRENT WITH THE AZIMUTHAL PHASE GRADIENT AND DEPENDING ONLY ON THE RADIUS. THE DISTRIBUTIONS OF CURRENTS AND MAGNETIC FIELDS CREATED BY THEM HAVE BEEN OBTAINED FOR THE CASES OF GIVEN TOTAL LONGITUDINAL AND AZIMUTHAL CURRENTS. IN THE SUPERCONDUCTOR OF THIS KIND THE MEISSNER-OCHSENFELD EFFECT HAS BEEN SHOWN TO BE BROKEN: THE CURRENTS CREATE MAGNETIC FIELDS IN THE SUPERCONDUCTOR VOLUME. IF THE CYLINDER IS A THIN FILM, THE SYSTEM HAS MEMORY: BY PUTTING THE IMPULSE OF LONGITUDINAL CURRENT IT TURNS INTO A PERMANENT MAGNET WITH THE FLUX PROPORTIONAL TO THE MAXIMUM CURRENT VALUE.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1990-0503
  • Languages: Russian
  • Source: Fiz. nizk. Temp. - vol. 15 - n. 4
  • Publication date: 1989
  • Document available for consultation in the library of the IIR headquarters only.

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