Effect of Fe substitution for Cu in the mixed state of (Bi, Pb):2223 superconductor

Abstract

The effect of the partial substitution of x = 0.02 Fe for Cu in the stabilized (Bi, Pb):2223 phase has been investigated by magnetoresistivity measurements up to 0.7 T. The intra- and intergranular transitions as a function of magnetic field were analysed using versus T curves. The Arrhenius plots are represented by a family of straight lines. The activation energy is proportional to . The main dissipation process is related to the vortex cutting mechanism.

Effect of Mo substitution on the structural and transport properties of Bi2Sr2Ca2Cu3−xMoxO10+y system

“…Tel. : +90 422 3410010x3720; fax: +90 422 3410037. grain formation and intergrain properties of the Bi-based system were highly influenced by the partial substitution of Cu by 3d-elements [2][3][4][5][6]. The substitution of Ni and Fe for Cu site showed a monotonically decrease on T c with the increase on the substitution levels.…”

Thermal and electrothermal characterization of bismuth based high-Tc superconductors

“…The effect of elements (Pb, Fe, Co, Ni, Zn) doping in Bi-based superconducting materials have been extensively investigated [1][2][3][4][5][6][7][8]. It was reported that the superconducting properties of these materials decrease with increase of the amount of doping, regardless of the nature of the dopants.…”

Thermal and superconducting properties of glass–ceramic HTc BiSrCa(CuPr)O system

“…Intergrain properties of the Bi-based HT c system were influenced by the partial substitution of Cu by 3d-elements, such as Ni, Co and Fe (Pop et al, 1996a(Pop et al, , 1996b(Pop et al, , 1997Pop, 1999;Gu et al, 1998). The T c value decreased significantly with the substitution of Ni and Fe.…”