Abstract
Superconducting properties of melt-processed (SmxEu1-x)Ba2Cu3O7-δ were investigated by varying the Sm/Eu ratio in the initial composition while maintaining the mixture of RE123 and RE2BaO4 in a molar ratio of 1:0.15 along the REBa2Cu3O7-δ-RE2BaO4 line (RE = Sm and Eu). A suppression of the height of peak effect and the shift of the peak position to higher fields concurred with increasing Eu concentration. Such a systematical variation was ascribed to a narrowing compositional fluctuation. Experiments also unveiled a dramatic enhancement of the irreversibility line for the sample with the higher peak field, which supported the fact that chemical modulation was a dominant pinning in high fields.
| Original language | English |
|---|---|
| Pages (from-to) | 692-696 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 378-381 |
| Issue number | PART 1 |
| DOIs | |
| Publication status | Published - 2002 Oct 1 |
| Externally published | Yes |
Fingerprint
Keywords
- Compositional fluctuation
- Irreversibility line
- Peak effect
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Influence of initial composition on the flux pinning of melt-processed (SmxEu1-x)Ba2Cu3O7-δ . / Hu, A.; Sakai, Naomichi; Huang, D. X.; Chikumoto, N.; Murakami, Masato.
In: Physica C: Superconductivity and its Applications, Vol. 378-381, No. PART 1, 01.10.2002, p. 692-696.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of initial composition on the flux pinning of melt-processed (SmxEu1-x)Ba2Cu3O7-δ
AU - Hu, A.
AU - Sakai, Naomichi
AU - Huang, D. X.
AU - Chikumoto, N.
AU - Murakami, Masato
PY - 2002/10/1
Y1 - 2002/10/1
N2 - Superconducting properties of melt-processed (SmxEu1-x)Ba2Cu3O7-δ were investigated by varying the Sm/Eu ratio in the initial composition while maintaining the mixture of RE123 and RE2BaO4 in a molar ratio of 1:0.15 along the REBa2Cu3O7-δ-RE2BaO4 line (RE = Sm and Eu). A suppression of the height of peak effect and the shift of the peak position to higher fields concurred with increasing Eu concentration. Such a systematical variation was ascribed to a narrowing compositional fluctuation. Experiments also unveiled a dramatic enhancement of the irreversibility line for the sample with the higher peak field, which supported the fact that chemical modulation was a dominant pinning in high fields.
AB - Superconducting properties of melt-processed (SmxEu1-x)Ba2Cu3O7-δ were investigated by varying the Sm/Eu ratio in the initial composition while maintaining the mixture of RE123 and RE2BaO4 in a molar ratio of 1:0.15 along the REBa2Cu3O7-δ-RE2BaO4 line (RE = Sm and Eu). A suppression of the height of peak effect and the shift of the peak position to higher fields concurred with increasing Eu concentration. Such a systematical variation was ascribed to a narrowing compositional fluctuation. Experiments also unveiled a dramatic enhancement of the irreversibility line for the sample with the higher peak field, which supported the fact that chemical modulation was a dominant pinning in high fields.
KW - Compositional fluctuation
KW - Irreversibility line
KW - Peak effect
UR - http://www.scopus.com/inward/record.url?scp=17044460927&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17044460927&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(02)01523-X
DO - 10.1016/S0921-4534(02)01523-X
M3 - Article
VL - 378-381
SP - 692
EP - 696
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - PART 1
ER -