Effect of Heavy Ion Irradiation on Flux Pinning Properties of Bi2212 and Bi(Pb)2212 Single Crystals Having Various #gamma#~2

摘要

Magnetization properties of Ta ion irradiated Bi2212 and Bi(Pb)2212 single crystals having various electromagnetic anisotropy, #gamma#~2, have been investigated. Flux pinning properties of the irradiated crystals were systematically improved up to higher temperature region with a decrease of #gamma#~2, suggesting that the identical pinning sites act more effective in the materials with smaller #gamma#~2.