The temperature and DC magnetic field dependence of surface impedance (Z<SUB>s</SUB>) of high temperature superconducting Bi(Pb)-Sr-Ca-Cu-O (BPSCCO) films on MgO substrate were measured at microwave frequency. At a low temperature, surface resistance (R<SUB>s</SUB>) increases rapidly in the low DC magnetic field range and gradually in the high-field range. However, the surface reactance (X<SUB>s</SUB>) also increases rapidly in low fields but hardly changes in high fields. At high temperature, R<SUB>s</SUB> shows only a monotonic increase vs the field but X<SUB>s</SUB> hardly changes.
|Number of pages||2|
|Journal||Japanese Journal of Applied Physics, Part 2: Letters|
|Publication status||Published - 1998|