Abstract
We successfully grew high-quality single-grain (Nd0.33Eu 0.39Gd0.27)Ba2Cu3Oy pellets using MgO seed crystals, provided a small quantity of ZnO was added. Tc (onset) continuously decreased with growing Zn content. An optimum for ZnO, compromising good superconducting and electromagnetic properties, was 0.035 mol%. With this ZnO content, Tc>92 K, a critical current density of 100 kA cm-2 was achieved at 77 K and 3 T, and the irreversibility field was >7 T. Perfect facet lines up to the bottom of the sample with the c-axis reflection plane appeared after the melt growth, implying a high density of the material and practically no liquid loss. Very small difference in the trapped field distribution on the top and bottom surfaces confirmed a uniform crystallographic structure and the electromagnetic properties of the pellet.
| Original language | English |
|---|---|
| Journal | Superconductor Science and Technology |
| Volume | 19 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2006 Jun |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
ZnO doping effects in melt-textured (Nd0.33Eu 0.39Gd0.27)Ba2Cu3Oy grown from MgO seed. / Miryala, Muralidhar; Kono, T.; Jirsa, M.; Sakai, Naomichi; Murakami, Masato; Hirabayashi, I.
In: Superconductor Science and Technology, Vol. 19, No. 6, 06.2006.Research output: Contribution to journal › Article
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TY - JOUR
T1 - ZnO doping effects in melt-textured (Nd0.33Eu 0.39Gd0.27)Ba2Cu3Oy grown from MgO seed
AU - Miryala, Muralidhar
AU - Kono, T.
AU - Jirsa, M.
AU - Sakai, Naomichi
AU - Murakami, Masato
AU - Hirabayashi, I.
PY - 2006/6
Y1 - 2006/6
N2 - We successfully grew high-quality single-grain (Nd0.33Eu 0.39Gd0.27)Ba2Cu3Oy pellets using MgO seed crystals, provided a small quantity of ZnO was added. Tc (onset) continuously decreased with growing Zn content. An optimum for ZnO, compromising good superconducting and electromagnetic properties, was 0.035 mol%. With this ZnO content, Tc>92 K, a critical current density of 100 kA cm-2 was achieved at 77 K and 3 T, and the irreversibility field was >7 T. Perfect facet lines up to the bottom of the sample with the c-axis reflection plane appeared after the melt growth, implying a high density of the material and practically no liquid loss. Very small difference in the trapped field distribution on the top and bottom surfaces confirmed a uniform crystallographic structure and the electromagnetic properties of the pellet.
AB - We successfully grew high-quality single-grain (Nd0.33Eu 0.39Gd0.27)Ba2Cu3Oy pellets using MgO seed crystals, provided a small quantity of ZnO was added. Tc (onset) continuously decreased with growing Zn content. An optimum for ZnO, compromising good superconducting and electromagnetic properties, was 0.035 mol%. With this ZnO content, Tc>92 K, a critical current density of 100 kA cm-2 was achieved at 77 K and 3 T, and the irreversibility field was >7 T. Perfect facet lines up to the bottom of the sample with the c-axis reflection plane appeared after the melt growth, implying a high density of the material and practically no liquid loss. Very small difference in the trapped field distribution on the top and bottom surfaces confirmed a uniform crystallographic structure and the electromagnetic properties of the pellet.
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U2 - 10.1088/0953-2048/19/6/L03
DO - 10.1088/0953-2048/19/6/L03
M3 - Article
VL - 19
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
SN - 0953-2048
IS - 6
ER -