Abstract
High-quality single domain (Sm0.5Eu0.5)Ba2Cu3O7-δ superconductors were grown in air with a thermal gradient. We found that the substitution of Ba by rare earth (RE) elements was considerably suppressed when the growth rate is large. Enhanced superconducting properties were obtained by further controlling initial compositions and combining a post-annealing in Ar. The crystals exhibited a high Tc value of 95 K with a sharp superconducting transition, and a well-developed secondary peak effect in the Jc-B curve at 77 K. TEM observation revealed that the nano-sized chemical variation between RE and Ba provided robust flux pinning.
| Original language | English |
|---|---|
| Pages (from-to) | 675-678 |
| Number of pages | 4 |
| Journal | Superconductor Science and Technology |
| Volume | 15 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2002 May |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Melt processing and enhanced superconducting properties of single domain (Sm0.5Eu0.5)123 superconductors fabricated in air. / Hu, A.; Sakai, Naomichi; Murakami, Masato.
In: Superconductor Science and Technology, Vol. 15, No. 5, 05.2002, p. 675-678.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Melt processing and enhanced superconducting properties of single domain (Sm0.5Eu0.5)123 superconductors fabricated in air
AU - Hu, A.
AU - Sakai, Naomichi
AU - Murakami, Masato
PY - 2002/5
Y1 - 2002/5
N2 - High-quality single domain (Sm0.5Eu0.5)Ba2Cu3O7-δ superconductors were grown in air with a thermal gradient. We found that the substitution of Ba by rare earth (RE) elements was considerably suppressed when the growth rate is large. Enhanced superconducting properties were obtained by further controlling initial compositions and combining a post-annealing in Ar. The crystals exhibited a high Tc value of 95 K with a sharp superconducting transition, and a well-developed secondary peak effect in the Jc-B curve at 77 K. TEM observation revealed that the nano-sized chemical variation between RE and Ba provided robust flux pinning.
AB - High-quality single domain (Sm0.5Eu0.5)Ba2Cu3O7-δ superconductors were grown in air with a thermal gradient. We found that the substitution of Ba by rare earth (RE) elements was considerably suppressed when the growth rate is large. Enhanced superconducting properties were obtained by further controlling initial compositions and combining a post-annealing in Ar. The crystals exhibited a high Tc value of 95 K with a sharp superconducting transition, and a well-developed secondary peak effect in the Jc-B curve at 77 K. TEM observation revealed that the nano-sized chemical variation between RE and Ba provided robust flux pinning.
UR - http://www.scopus.com/inward/record.url?scp=0036573229&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036573229&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/15/5/307
DO - 10.1088/0953-2048/15/5/307
M3 - Article
AN - SCOPUS:0036573229
VL - 15
SP - 675
EP - 678
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 5
ER -