TY - JOUR
T1 - Single-grain growth, microstructure and superconducting properties of (Sm,Eu)123 superconductors with BaCuO2-x addition
AU - Hu, A.
AU - Sakai, N.
AU - Zhou, H.
AU - Matsui, M.
AU - Murakami, M.
PY - 2003/1/1
Y1 - 2003/1/1
N2 - High quality (Sm0.5, Eu0.5)Ba2Cu3O7-δ single domains were grown in air with BaCuO2-x addition. It was found that a RE-Ba substitution (RE: Sm and Eu) could be effectively suppressed by a small addition of BaCuO2-x. The 94 K superconductivity with sharp transition was obtained in the composition range of 0.16 ∼ 0.33 BaCuO2-x and (Sm0.5, Eu0.5)Ba2Cu3O7-δ in a molar ratio. At 77 K, a surface field of 0.8 T was trapped in a single-domain pellet of 3.2 cm diameter. A further addition of BaCuO2-x deteriorated the microstructure and degraded the superconducting performance.
AB - High quality (Sm0.5, Eu0.5)Ba2Cu3O7-δ single domains were grown in air with BaCuO2-x addition. It was found that a RE-Ba substitution (RE: Sm and Eu) could be effectively suppressed by a small addition of BaCuO2-x. The 94 K superconductivity with sharp transition was obtained in the composition range of 0.16 ∼ 0.33 BaCuO2-x and (Sm0.5, Eu0.5)Ba2Cu3O7-δ in a molar ratio. At 77 K, a surface field of 0.8 T was trapped in a single-domain pellet of 3.2 cm diameter. A further addition of BaCuO2-x deteriorated the microstructure and degraded the superconducting performance.
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U2 - 10.1088/0953-2048/16/1/307
DO - 10.1088/0953-2048/16/1/307
M3 - Article
AN - SCOPUS:0037239447
SN - 0953-2048
VL - 16
SP - 33
EP - 38
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
IS - 1
ER -