Stable barium compounds in YBa
                        2
                        Cu
                        3
                        O
                        y
                         superconductors

R. Kita; K. Suzuki; T. Takeuchi; T. Iwasa; O. Miura; Y. Ichino; T. Yoshimura; Y. Yoshida; K. Yamada; Kenji Kaneko; A. Ichinose

doi:10.1016/j.physc.2011.05.074

Stable barium compounds in YBa ₂ Cu ₃ O _y superconductors

R. Kita, K. Suzuki, T. Takeuchi, T. Iwasa, O. Miura, Y. Ichino, T. Yoshimura, Y. Yoshida, K. Yamada, Kenji Kaneko, A. Ichinose

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

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	https://doi.org/10.1016/j.physc.2011.05.074
Publication status	Published - Nov 1 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2011.05.074

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Kita, R., Suzuki, K., Takeuchi, T., Iwasa, T., Miura, O., Ichino, Y., Yoshimura, T., Yoshida, Y., Yamada, K., Kaneko, K., & Ichinose, A. (2011). Stable barium compounds in YBa ₂ Cu ₃ O _y superconductors Physica C: Superconductivity and its applications, 471(21-22), 859-862. https://doi.org/10.1016/j.physc.2011.05.074

Stable barium compounds in YBa ₂ Cu ₃ O _y superconductors . / Kita, R.; Suzuki, K.; Takeuchi, T. et al.

In: Physica C: Superconductivity and its applications, Vol. 471, No. 21-22, 01.11.2011, p. 859-862.

Research output: Contribution to journal › Article › peer-review

Kita, R, Suzuki, K, Takeuchi, T, Iwasa, T, Miura, O, Ichino, Y, Yoshimura, T, Yoshida, Y, Yamada, K, Kaneko, K & Ichinose, A 2011, ' Stable barium compounds in YBa ₂ Cu ₃ O _y superconductors ', Physica C: Superconductivity and its applications, vol. 471, no. 21-22, pp. 859-862. https://doi.org/10.1016/j.physc.2011.05.074

Kita R, Suzuki K, Takeuchi T, Iwasa T, Miura O, Ichino Y et al. Stable barium compounds in YBa ₂ Cu ₃ O _y superconductors Physica C: Superconductivity and its applications. 2011 Nov 1;471(21-22):859-862. doi: 10.1016/j.physc.2011.05.074

Kita, R. ; Suzuki, K. ; Takeuchi, T. et al. / Stable barium compounds in YBa ₂ Cu ₃ O _y superconductors In: Physica C: Superconductivity and its applications. 2011 ; Vol. 471, No. 21-22. pp. 859-862.

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title = " Stable barium compounds in YBa 2 Cu 3 O y superconductors ",

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.%.",

author = "R. Kita and K. Suzuki and T. Takeuchi and T. Iwasa and O. Miura and Y. Ichino and T. Yoshimura and Y. Yoshida and K. Yamada and Kenji Kaneko and A. Ichinose",

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AU - Miura, O.

AU - Ichino, Y.

AU - Yoshimura, T.

AU - Yoshida, Y.

AU - Yamada, K.

AU - Kaneko, Kenji

AU - Ichinose, A.

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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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Stable barium compounds in YBa ₂ Cu ₃ O _y superconductors

Abstract

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