Abstract
The origin of the peak effect on Jc is studied for Nd1+xBa2-xCu3O7-δ single crystals grown by the slow cooling method under various partial O2 pressures, PO2 = 0.04 ∼ 1% in Ar atmosphere. We find that the peak effect disappears for the crystals grown under PO2 ∼ 0.04%, where the Nd/Ba substitution can be negligible. This result demonstrates the important role of Nd/Ba substitution for the peak effect. We also investigate the oxygen vacancy effect on the peak effect by using oxygen deficient samples. The large peak effect at relatively high fields seems to be brought by controlling the amount of Nd/Ba substitution rather than oxygen vacancies in almost fully oxygenated crystals.
| Original language | English |
|---|---|
| Pages (from-to) | 523-526 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 357-360 |
| Issue number | SUPPL. 2 |
| DOIs | |
| Publication status | Published - 2001 Aug 1 |
| Externally published | Yes |
Keywords
- Nd/Ba substitution
- NdBaCuO single crystals
- Oxygen vacancy effect
- Peak effect
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Fingerprint Dive into the research topics of 'Nd/Ba substitution and oxygen deficiency effects on the pinning properties of Nd<sub>1+x</sub>Ba<sub>2-x</sub>Cu<sub>3</sub>O<sub>7-δ</sub> single crystals'. Together they form a unique fingerprint.
Cite this
Shibata, S., Yamamoto, A., Feng, Y., Pradhan, A. K., Machi, T., & Koshizuka, N. (2001). Nd/Ba substitution and oxygen deficiency effects on the pinning properties of Nd1+xBa2-xCu3O7-δ single crystals. Physica C: Superconductivity and its applications, 357-360(SUPPL. 2), 523-526. https://doi.org/10.1016/S0921-4534(01)00341-0