Abstract
We prepared various MgO substrates cut from various ingots with different impurity-Ca concentrations and deposited NdBa2Cu3O 7-δ (NBCO) thin-films on them by using molecular beam epitaxy (MBE). As a result, we found that the room temperature resistivity (ρ(RT)) of NBCO thin-films and the Ca concentration in an MgO substrate are quantitatively correlated. Moreover we clarified the permissible impurity-Ca concentration in MgO substrates in terms of practical microwave applications.
Original language | English |
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Pages (from-to) | L419-L421 |
Journal | Japanese Journal of Applied Physics, Part 2: Letters |
Volume | 45 |
Issue number | 12-16 |
DOIs | |
Publication status | Published - 2006 |
Externally published | Yes |
Keywords
- Impurity
- MgO substrates
- NdBaCuO thin films
- RE-123 thin films
- Resistivity
- Superconducting thin films
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)