Flexible superconducting whiskers of the Li-doped Bi-Sr-Ca-Cu oxide
- 21 May 1990
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 56 (21) , 2141-2143
- https://doi.org/10.1063/1.103238
Abstract
Flexible Li‐doped Bi‐Sr‐Ca‐Cu‐O superconductingwhiskers have been prepared by heating a glassy melt‐quenched plate in a stream of O2 gas. The whiskers show a resistance drop at 110 K with a zero resistance at 81 K. These values are higher than those of the Pb‐doped Bi‐Sr‐Ca‐Cu‐O whiskers by 5 and 11 K, respectively. The doping of Li is effective to raise T c for both the 2212 phase and the 2223 phase. The J c values of the Li‐doped whiskers are 30 000 A/cm2 at 77 K and 300 000 A/cm2 at 66 K in a zero magnetic field.Keywords
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