Transport critical currents and grain boundary coupling in high-{Tc} superconductors
We propose that the transport critical current density for high-{Tc} thin films, bicrystals and bulk ceramics is determined by the magnetic field penetration into the grain boundaries; the grain orientation may not be an important factor. The parameter ({lambda}{sub L}/{lambda}{sub J}){sup 2} can characterize the strength of the grain boundary coupling, which depends mainly on the crystal coherence and connectivity at the boundary area, but not on the crystal orientation.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10144496
- Report Number(s):
- ANL/MSD/PP-73888; ON: DE94010449
- Resource Relation:
- Other Information: PBD: Jul 1991
- Country of Publication:
- United States
- Language:
- English
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