한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 1999년도 추계학술대회 논문집
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- Pages.217-220
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- 1999
Bi-Sr-Ca-Cu-O 계에 서 초전도상 형성에 미치는 도우핑 원소의 영향
Influence of Doping Elements on the. Formation of Superconducting Phase in the Bi-Sr-Ca-Cu-O System
초록
We investigated the effects of doping elements on the Bi-Sr-Ca-Cu-0 ceramics. The doping elements can be classified into groups depending on their supeconducting characteristics in the Bi -Sr-Ca-Cu -O structure. The first group of doping elements(Co, Fe, Ni and Zn) substitute into the copper site and can reduce the critical temperatures of the 2223 and 2212 phases. The second group of doping elements(Y and La) substitute into the Ca site and cause the disappearance of the 2223 phase and increase the critical temperatures in the 2212 phase.