ACTA

Size Effect in Impedance of Nb₃Al Superconductor

P. Aleksyeyev^{a, b}, A. Nabiałek^a, S. Vasiliev^{a, b}, V. Rusakov^c, V. Chabanenko^b, M. Zalutskii^b, S. Piechota^a, H. Szymczak^a and B.N. Kodess^di
^aInstytut Fizyki Polskiej Akademii Nauk, al. Lotników 32/46, 02-668 Warszawa, Poland
^bDonPhTI UAS, R. Luxemburg str. 72, 83114 Donetsk, Ukraine
^cDonNU, Universitetskaya str. 24, 83055 Donetsk, Ukraine
^dVNIIMS, 119361 Moscow, Russia

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Received: 25 09 2005;

We present the results of the impedance measurements in Nb₃Al superconducting polycrystalline alloy vs. temperature and magnetic field. Using these results and applying the size effect model we calculate the flux-flow conductivity of the Nb₃Al superconducting alloy near its critical temperature.

DOI: 10.12693/APhysPolA.109.555
PACS numbers: 74.25.Qt, 74.70.Ad