抄録
We have investigated the ternary compound superconductors (Nd0.33Eu0.33Gd0.33)Ba2Cu 3Oy (NEG), (Sm0.33Eu0.33Gd0.33)Ba2Cu 3Oy (SEG) and (Nd0.33Sm0.33Gd0.33)Ba2Cu 3Oy (NSG) melt-processed in a reduced oxygen atmosphere with magnetic and magneto-optical measurements. Zero-field-cooled and field-cooled measurements were carried out in order to correlate the flux distributions with microstructure analysis. It was found that the critical state is well established in all three samples. The Jc(B) curves derived from magnetization loops exhibit a strongly developed secondary peak effect. Scaling of normalized Jc as a function of reduced field, b = B/Bpk, was performed. At 77 K and above, it was found that NSG and SEG samples have similar properties, which are different from those of the NEG sample. The current-carrying length scale was determined from the reverse leg of the magnetization hysteresis loops and was compared with the actual dimensions of the sample.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1283-1291 |
| ページ数 | 9 |
| ジャーナル | Superconductor Science and Technology |
| 巻 | 11 |
| 発行部数 | 11 |
| DOI | |
| 出版物ステータス | Published - 1998 11 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
これを引用
Magnetic and magneto-optic characterization of the ternary compounds (Nd0.33Eu0.33Gd0.33)Ba2Cu3 Oy,(Sm0.33Eu0.33Gd0.33)Ba2CU 3Oy and (Nd0.33Sm0.33Gd0.33) Ba2Cu3Oy. / Das, A.; Koblischka, Michael Rudolf; Sakai, Naomichi; Miryala, Muralidhar; Koishikawa, S.; Fukuzaki, T.; Seo, S. J.; Murakami, Masato.
：: Superconductor Science and Technology, 巻 11, 番号 11, 11.1998, p. 1283-1291.研究成果: Article
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TY - JOUR
T1 - Magnetic and magneto-optic characterization of the ternary compounds (Nd0.33Eu0.33Gd0.33)Ba2Cu3 Oy,(Sm0.33Eu0.33Gd0.33)Ba2CU 3Oy and (Nd0.33Sm0.33Gd0.33) Ba2Cu3Oy
AU - Das, A.
AU - Koblischka, Michael Rudolf
AU - Sakai, Naomichi
AU - Miryala, Muralidhar
AU - Koishikawa, S.
AU - Fukuzaki, T.
AU - Seo, S. J.
AU - Murakami, Masato
PY - 1998/11
Y1 - 1998/11
N2 - We have investigated the ternary compound superconductors (Nd0.33Eu0.33Gd0.33)Ba2Cu 3Oy (NEG), (Sm0.33Eu0.33Gd0.33)Ba2Cu 3Oy (SEG) and (Nd0.33Sm0.33Gd0.33)Ba2Cu 3Oy (NSG) melt-processed in a reduced oxygen atmosphere with magnetic and magneto-optical measurements. Zero-field-cooled and field-cooled measurements were carried out in order to correlate the flux distributions with microstructure analysis. It was found that the critical state is well established in all three samples. The Jc(B) curves derived from magnetization loops exhibit a strongly developed secondary peak effect. Scaling of normalized Jc as a function of reduced field, b = B/Bpk, was performed. At 77 K and above, it was found that NSG and SEG samples have similar properties, which are different from those of the NEG sample. The current-carrying length scale was determined from the reverse leg of the magnetization hysteresis loops and was compared with the actual dimensions of the sample.
AB - We have investigated the ternary compound superconductors (Nd0.33Eu0.33Gd0.33)Ba2Cu 3Oy (NEG), (Sm0.33Eu0.33Gd0.33)Ba2Cu 3Oy (SEG) and (Nd0.33Sm0.33Gd0.33)Ba2Cu 3Oy (NSG) melt-processed in a reduced oxygen atmosphere with magnetic and magneto-optical measurements. Zero-field-cooled and field-cooled measurements were carried out in order to correlate the flux distributions with microstructure analysis. It was found that the critical state is well established in all three samples. The Jc(B) curves derived from magnetization loops exhibit a strongly developed secondary peak effect. Scaling of normalized Jc as a function of reduced field, b = B/Bpk, was performed. At 77 K and above, it was found that NSG and SEG samples have similar properties, which are different from those of the NEG sample. The current-carrying length scale was determined from the reverse leg of the magnetization hysteresis loops and was compared with the actual dimensions of the sample.
UR - http://www.scopus.com/inward/record.url?scp=0032205811&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032205811&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/11/11/015
DO - 10.1088/0953-2048/11/11/015
M3 - Article
AN - SCOPUS:0032205811
VL - 11
SP - 1283
EP - 1291
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 11
ER -