Nonlinear Properties of Multiphase High-Temperature Superconductors of the Bi-Sr-Ca-Cu-O System in the Temperature Range of the Superconducting Transition

作者：Golev, I. M.^*; Sergeev, A. V.; Kalyadin, O. V.

来源：Physics of the Solid State, 2017, 59(1): 16-20.

DOI：10.1134/S1063783417010085

• MAGNETIC-FIELD
• CONDUCTIVITY
• STATE

The nonlinear characteristics of high-temperature superconductors of the Bi-Sr-Ca-Cu-O system have been experimentally investigated in the temperature range of the superconducting transition under the influence of a harmonic alternating magnetic field. The effect of the generation of odd harmonics in the signal of response to a harmonic alternating magnetic field for multiphase high-temperature superconductors containing regions with different values of the critical temperature in their bulk has been observed for the first time. The mechanism of harmonic generation in a superconductor in the resistive state, which is associated with the switch effect, i.e., with the redistribution of eddy current density between the local regions of the superconductor, has been considered.

• 出版日期2017-1