Cm. Friend et Yb. Huang, Self-field ac losses of a twisted multifilamentary (Bi, Pb)(2)Sr2Ca2Cu3O10/AgAu tape, APPL PHYS L, 76(26), 2000, pp. 3983-3985
Self-field loss measurements at 77 K on a superconducting (Bi, Pb)(2)Sr2Ca2
Cu3O10/AgAu tape with twisted filaments are presented. Using the first- and
third-harmonic components of the electric field, the hysteretic losses are
separated from the total loss. At peak transport currents less than half t
he critical current, the hysteretic losses are considerably reduced. Howeve
r, sizable nonhysteretic losses are also observed. At higher currents, the
hysteretic loss increases, dominating the total loss, and is similar to tha
t for an untwisted tape. (C) 2000 American Institute of Physics. [S0003-695
1(00)03626-3].