110 k superconductivity in crystallized Bi-Sr-Ca-Cu-O glasses
โ Scribed by Donglu Shi; Monica Blank; Mita Patel; David G. Hinks; A.W. Mitchell; K. Vandervoort; H. Claus
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 312 KB
- Volume
- 156
- Category
- Article
- ISSN
- 0921-4534
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โฆ Synopsis
Superconducting transition temperatures near 1 i 0 K are observed in the Bi-Sr-Ca-Cu-O systerh with the nominal compositions Bi2Sr2Ca3Cu4Ox and Bi2Sr2Ca4CusOx. Electrical resistivity, magnetization, and X-ray diffraction data are reported. Also discussed is the effect of heat treatment on the thermodynamic behavior of the superconducting phases in the rapidly quenched glasses.
๐ SIMILAR VOLUMES
The (Bi,Pb)-Sr-Ca-Cu-O glass-ceramics may be considered as disordered metal and superconductor. Depending on the heat treatment conditions the materials are either composed of the oval grains of the 2212 or 2201 phases embedded in the insulating matrix or they mainly contain the 2212 plate-like crys