Abstract
The stability of various amounts of Ba 3 Cu 3 In 4 O 12 (334) or BaTbO 3 (BTO) in a sintered YBa 2 Cu 3 O y (YBCO) matrix was examined. Samples with added 334 or BTO exhibited critical temperatures (T c ) above 90 K for up to 20 vol.% addition and improved critical current densities (J c ) under a magnetic field. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) analysis indicated that 334 and BTO did not react with the YBCO matrix under the sintering conditions used. The normalized J c under a magnetic field of 1 T reached a maximum at 14 vol.% of 334 addition and 20 vol.% BTO addition. YBCO thin films with added BTO showed a gradual decrease in the T c with increasing BTO content. YBCO films with added 334 showed a constant T c of 87 K up to a 334 content of 4 vol.%.
| Original language | English |
|---|---|
| Pages (from-to) | 859-862 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 471 |
| Issue number | 21-22 |
| DOIs | |
| Publication status | Published - Nov 1 2011 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
Stable barium compounds in YBa 2 Cu 3 O y superconductors . / Kita, R.; Suzuki, K.; Takeuchi, T.; Iwasa, T.; Miura, O.; Ichino, Y.; Yoshimura, T.; Yoshida, Y.; Yamada, K.; Kaneko, Kenji; Ichinose, A.
In: Physica C: Superconductivity and its applications, Vol. 471, No. 21-22, 01.11.2011, p. 859-862.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Stable barium compounds in YBa 2 Cu 3 O y superconductors
AU - Kita, R.
AU - Suzuki, K.
AU - Takeuchi, T.
AU - Iwasa, T.
AU - Miura, O.
AU - Ichino, Y.
AU - Yoshimura, T.
AU - Yoshida, Y.
AU - Yamada, K.
AU - Kaneko, Kenji
AU - Ichinose, A.
PY - 2011/11/1
Y1 - 2011/11/1
N2 - The stability of various amounts of Ba 3 Cu 3 In 4 O 12 (334) or BaTbO 3 (BTO) in a sintered YBa 2 Cu 3 O y (YBCO) matrix was examined. Samples with added 334 or BTO exhibited critical temperatures (T c ) above 90 K for up to 20 vol.% addition and improved critical current densities (J c ) under a magnetic field. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) analysis indicated that 334 and BTO did not react with the YBCO matrix under the sintering conditions used. The normalized J c under a magnetic field of 1 T reached a maximum at 14 vol.% of 334 addition and 20 vol.% BTO addition. YBCO thin films with added BTO showed a gradual decrease in the T c with increasing BTO content. YBCO films with added 334 showed a constant T c of 87 K up to a 334 content of 4 vol.%.
AB - The stability of various amounts of Ba 3 Cu 3 In 4 O 12 (334) or BaTbO 3 (BTO) in a sintered YBa 2 Cu 3 O y (YBCO) matrix was examined. Samples with added 334 or BTO exhibited critical temperatures (T c ) above 90 K for up to 20 vol.% addition and improved critical current densities (J c ) under a magnetic field. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) analysis indicated that 334 and BTO did not react with the YBCO matrix under the sintering conditions used. The normalized J c under a magnetic field of 1 T reached a maximum at 14 vol.% of 334 addition and 20 vol.% BTO addition. YBCO thin films with added BTO showed a gradual decrease in the T c with increasing BTO content. YBCO films with added 334 showed a constant T c of 87 K up to a 334 content of 4 vol.%.
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U2 - 10.1016/j.physc.2011.05.074
DO - 10.1016/j.physc.2011.05.074
M3 - Article
AN - SCOPUS:80054967555
VL - 471
SP - 859
EP - 862
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 21-22
ER -