Surface morphology of PrBa2Cu3O7-δ single crystals after the long-lasting high-temperature reduction

• Authors: Maciej Łuszczek , Wojciech Sadowski
• Languages of publication: EN

Abstracts

EN

The results of the detailed scanning electron microscopy study of PrBa2Cu3O7-δ single crystals after the long-lasting high-temperature post-growth treatment are reported. The presence of the unstable decomposition products on the crystal surface indicates that the onset of superconductivity must be related to the structural transformations in the bulk (approximately 20% of the total volume of the examined crystals). The time-dependent character of the superconductivity in the Pr-123 crystals could be attributed to the migration of defects in the Pr−Ba sublattice from the bulk toward the surface.

Keywords

EN

Superconductivity; PrBa2Cu3O7-δ; 74.20.Fg; 74.70.Vv

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2003
• Volume: 1
• Issue: 4
• Pages: 626-633

Dates

published

1 - 12 - 2003

online

1 - 12 - 2003

Contributors

author

Maciej Łuszczek

• Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, G. Narutowicza 11/12, 80-952, Gdańsk, Poland

author

Wojciech Sadowski

• Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, G. Narutowicza 11/12, 80-952, Gdańsk, Poland

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Identifiers

DOI

10.2478/BF02475907