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 |
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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 |
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