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 |
| Externally published | Yes |
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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
Cite this
Nd/Ba substitution and oxygen deficiency effects on the pinning properties of Nd1+xBa2-xCu3O7-δ single crystals. / Shibata, S.; Yamamoto, Ayako; Feng, Y.; Pradhan, A. K.; Machi, T.; Koshizuka, N.
In: Physica C: Superconductivity and its Applications, Vol. 357-360, No. SUPPL. 2, 08.2001, p. 523-526.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nd/Ba substitution and oxygen deficiency effects on the pinning properties of Nd1+xBa2-xCu3O7-δ single crystals
AU - Shibata, S.
AU - Yamamoto, Ayako
AU - Feng, Y.
AU - Pradhan, A. K.
AU - Machi, T.
AU - Koshizuka, N.
PY - 2001/8
Y1 - 2001/8
N2 - 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.
AB - 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.
KW - Nd/Ba substitution
KW - NdBaCuO single crystals
KW - Oxygen vacancy effect
KW - Peak effect
UR - http://www.scopus.com/inward/record.url?scp=0035425090&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035425090&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(01)00341-0
DO - 10.1016/S0921-4534(01)00341-0
M3 - Article
VL - 357-360
SP - 523
EP - 526
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SUPPL. 2
ER -