INSULATOR TO SUPERCONDUCTOR TRANSITION OF Pb DOPED 2201 SINGLE CRYSTAL IN Bi-SYSTEM BY OXYGEN DEFICIENCY
-
Abstract
Flux method was used to grow large 2201 single crystal in Bi-Sr-Cu oxide. The as-grown crystal was nonsuperconductor and showed semiconductivity in resistivity curve. After it was reduced in flowing N2 at 570°C and appropriate oxygen vacancies were induced, superconductivity with Tonc=6K was obtained. The great influence of oxygen deficience on superconductivity is evident. Also, the incorporation of Pb adjusted the modulation pattern.
Article Text
-
-
-
About This Article