On the 110 K Superconductor in the Bi-Ca-Sr-Cu-O System
On the 110 K Superconductor in the Bi-Ca-Sr-Cu-O System
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Bi-Ca-Sr-Cu-O体系中110 K超导体的研究
DOI：
10.1143/jjap.27.l556
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发表时间：
1988
影响因子：
1.5
通讯作者：
Katsuo Kato
中科院分区：
文献类型：
--
作者：
E. Takayama;Y. Uchida;Y. Matsui;M. Onoda;Katsuo Kato
我们在Bi-Ca-Sr-Cu-O体系中发现了一种与80K超导体Bi2(Ca,Sr)3Cu2Oy结构不同的新化合物。该化合物的 c 维为 ∼37 Å，比 Bi2(Ca, Sr)3Cu2Oy 长 ∼6 Å。尽管我们还没有获得单相样品，但略低于 110 K 的抗磁化率与样品中该化合物的含量之间的明显相关性强烈表明，c≈37 Å 的化合物是 Tc∼110 K 超导性的原因。
We found a new compound in the Bi-Ca-Sr-Cu-O system which has a different structure from the 80 K superconductor Bi2(Ca, Sr)3Cu2Oy. The c-dimension of this compound is ∼37 Å and is ∼6 Å longer than that of Bi2(Ca, Sr)3Cu2Oy. Although we have not obtained a single-phased sample yet, the clear correlation between the diamagnetic susceptibility just below 110 K and the content of this compound included in the sample strongly suggests that the compound with c≈37 Å is responsible for the superconductivity of Tc∼110 K.