Abstract
The effects of various oxygen partial pressures (PO(2)) during melt processing on the superconducting properties of fabricated NdBa2Cu3Oy (Nd123) superconductors have been systematically investigated. Unlike in air or O2, samples melt-processed in reduced oxygen atmospheres exhibited unprecedentedly high Tc's of 95-96 K with a sharp superconducting transition. Especially, for a sample melt-processed in 0.1% O2 in Ar, the magnetization hysteresis (M-H) loop was kept open up to 7 T at 77 K and for the field parallel to the c-axis of the sample (H//c), implying that very effective flux pinning can be achieved in high magnetic fields.
| Original language | English |
|---|---|
| Pages (from-to) | 1000-1003 |
| Number of pages | 4 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 33 |
| Issue number | 7 B |
| Publication status | Published - 1994 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Enhanced Tc and strong flux pinning in melt-processed NdBa2Cu3Oy superconductors. / Yoo, Sang Im; Murakami, Masato; Sakai, Naomichi; Higuchi, Takamitsu; Tanaka, Shoji.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 33, No. 7 B, 1994, p. 1000-1003.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enhanced Tc and strong flux pinning in melt-processed NdBa2Cu3Oy superconductors
AU - Yoo, Sang Im
AU - Murakami, Masato
AU - Sakai, Naomichi
AU - Higuchi, Takamitsu
AU - Tanaka, Shoji
PY - 1994
Y1 - 1994
N2 - The effects of various oxygen partial pressures (PO(2)) during melt processing on the superconducting properties of fabricated NdBa2Cu3Oy (Nd123) superconductors have been systematically investigated. Unlike in air or O2, samples melt-processed in reduced oxygen atmospheres exhibited unprecedentedly high Tc's of 95-96 K with a sharp superconducting transition. Especially, for a sample melt-processed in 0.1% O2 in Ar, the magnetization hysteresis (M-H) loop was kept open up to 7 T at 77 K and for the field parallel to the c-axis of the sample (H//c), implying that very effective flux pinning can be achieved in high magnetic fields.
AB - The effects of various oxygen partial pressures (PO(2)) during melt processing on the superconducting properties of fabricated NdBa2Cu3Oy (Nd123) superconductors have been systematically investigated. Unlike in air or O2, samples melt-processed in reduced oxygen atmospheres exhibited unprecedentedly high Tc's of 95-96 K with a sharp superconducting transition. Especially, for a sample melt-processed in 0.1% O2 in Ar, the magnetization hysteresis (M-H) loop was kept open up to 7 T at 77 K and for the field parallel to the c-axis of the sample (H//c), implying that very effective flux pinning can be achieved in high magnetic fields.
UR - http://www.scopus.com/inward/record.url?scp=0028460917&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0028460917&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0028460917
VL - 33
SP - 1000
EP - 1003
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7 B
ER -