Investigation of the Intergrain Junctions of Polycrystalline HTSC in Rotating Weak ac Magnetic Fields

Authors: IOSEB R. METSKHVARISHVILI, MAGDA R. METSKHVARISHVILI, LUIZA KHORBALADZE, MIKHEIL ELIZBARASHVILI, ZAUR MIMINOSHVILI, LARISA NEKRASOVA

Abstract: YBa_2Cu_3O_y polycrystalline superconductor has been studied in weak rotating ac magnetic fields with existence of constant dc field. Measurements were carried out in various temperature intervals, and in various variable and constant fields. Results of our experiments are in good agreement with the isotropic model.

Keywords: Josephson junctions, rotating weak ac magnetic field, even and odd harmonics.

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