【摘要】 实验研究了掺氟的Bi-Pb-Sr-Ca-Cu-O块状超导体的磁化和磁通蠕动,结果表明存在一些新的行为:当100Oe<H<1000Oe时,s=dM/dlnt∝H^1/2;当H<150Oe时,U₀（H）∝exp（—H/30）;当H>150Oe时,U₀（H）∝H^-α,且α=3/2。更多还原

【Abstract】 The magnetization and the flux creep in the fluorine-doping Bi-Pb-Sr-Ca-Cu-O bulk superconductor have been experimentally studied. The experimental results exhibit some new behaviours and suggest that S = dM/dlnt cc //1/2 for the fields 100 Oe< // <1000 Oe; t/0(//) oc exp(?///30) for the fields below 150 Oe and (70(#) cc H~" with a = 3/2 for the fields above 150 Oe.更多还原