Abstract
Flux distributions of partial-melting processed Bi2Sr2CaCu2O8+δ ceramics are obtained using magneto-optic imaging. In remanent states (μ0Ha = 0 T), large amounts of trapped flux are observed along (Sr,Ca)2CuOy particles embedded in the Bi2Sr2CaCu2O8+δ matrix. Despite the relatively large size of these particles (up to 30 μm), the pinning effect is similar to that of Y2BaCuO5 particles in melt-processed YBa2Cu3O7-δ. Furthermore, we discuss how the pinning capability of non-superconducting particles of different sizes and densities will show up in magneto-optic images.
| Original language | English |
|---|---|
| Pages (from-to) | 207-211 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 300 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 1998 Jan 1 |
| Externally published | Yes |
Keywords
- (Sr,Ca)CuO particles
- Ceramics
- Pinning properties
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Cite this
Koblischka, M. R., Huang, S. L., Fossheim, K., Johansen, T. H., & Bratsberg, H. (1998). Evidence for pinning by (Sr,Ca) 2CuOy particles in partial-melting processed bulk Bi2Sr2CaCu2O8+δ ceramics. Physica C: Superconductivity and its applications, 300(3-4), 207-211. https://doi.org/10.1016/S0921-4534(98)00105-1