Effects of indium doping on the superconducting properties of YBa 2Cu3Oy sintered compounds and thin films

R. Kita; S. Nakamura; K. Sakimoto; T. Nakamura; O. Miura; K. Matsumoto; P. Mele; K. Yamada; K. Kaneko; A. Ichinose

doi:10.1016/j.physc.2010.05.073

Effects of indium doping on the superconducting properties of YBa ₂Cu₃O_y sintered compounds and thin films

R. Kita, S. Nakamura, K. Sakimoto, T. Nakamura, O. Miura, K. Matsumoto, P. Mele, K. Yamada, K. Kaneko, A. Ichinose

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

2 Citations (Scopus)

Abstract

We investigated the effects of indium doping on the superconducting properties of YBCO sintered samples and thin films. In₂O ₃-doped YBCO and YBa₂Cu_{3 x}In_xO _y sintered samples showed a gradual decrease in the critical temperature (T_c) with increasing indium content; however, a T _c value above 80 K was maintained even up to 30 vol.% addition and x = 0.4, respectively. Ba₃Cu₃In₄O₁₂ was detected by X-ray diffractometry and energy-dispersive X-ray spectroscopy as a reaction product for both sintered samples. The normalized J_c under a magnetic field of 0.1 T showed a maximum at x = 0.3. Indium-doped YBCO films prepared by pulsed laser deposition showed a similar dependence of T _c on indium content as the sintered samples.

Original language	English
Pages (from-to)	1198-1200
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	470
Issue number	20
DOIs	https://doi.org/10.1016/j.physc.2010.05.073
Publication status	Published - 2010 Nov 1
Externally published	Yes

Keywords

Artificial pinning center
In-doping
Thin film

ASJC Scopus subject areas

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

Access to Document

10.1016/j.physc.2010.05.073

Cite this

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title = "Effects of indium doping on the superconducting properties of YBa 2Cu3Oy sintered compounds and thin films",

abstract = "We investigated the effects of indium doping on the superconducting properties of YBCO sintered samples and thin films. In2O 3-doped YBCO and YBa2Cu3 xInxO y sintered samples showed a gradual decrease in the critical temperature (Tc) with increasing indium content; however, a T c value above 80 K was maintained even up to 30 vol.% addition and x = 0.4, respectively. Ba3Cu3In4O12 was detected by X-ray diffractometry and energy-dispersive X-ray spectroscopy as a reaction product for both sintered samples. The normalized Jc under a magnetic field of 0.1 T showed a maximum at x = 0.3. Indium-doped YBCO films prepared by pulsed laser deposition showed a similar dependence of T c on indium content as the sintered samples.",

keywords = "Artificial pinning center, In-doping, Thin film",

author = "R. Kita and S. Nakamura and K. Sakimoto and T. Nakamura and O. Miura and K. Matsumoto and P. Mele and K. Yamada and K. Kaneko and A. Ichinose",

year = "2010",

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doi = "10.1016/j.physc.2010.05.073",

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AU - Kita, R.

AU - Nakamura, S.

AU - Sakimoto, K.

AU - Nakamura, T.

AU - Miura, O.

AU - Matsumoto, K.

AU - Mele, P.

AU - Yamada, K.

AU - Kaneko, K.

AU - Ichinose, A.

PY - 2010/11/1

Y1 - 2010/11/1

N2 - We investigated the effects of indium doping on the superconducting properties of YBCO sintered samples and thin films. In2O 3-doped YBCO and YBa2Cu3 xInxO y sintered samples showed a gradual decrease in the critical temperature (Tc) with increasing indium content; however, a T c value above 80 K was maintained even up to 30 vol.% addition and x = 0.4, respectively. Ba3Cu3In4O12 was detected by X-ray diffractometry and energy-dispersive X-ray spectroscopy as a reaction product for both sintered samples. The normalized Jc under a magnetic field of 0.1 T showed a maximum at x = 0.3. Indium-doped YBCO films prepared by pulsed laser deposition showed a similar dependence of T c on indium content as the sintered samples.

AB - We investigated the effects of indium doping on the superconducting properties of YBCO sintered samples and thin films. In2O 3-doped YBCO and YBa2Cu3 xInxO y sintered samples showed a gradual decrease in the critical temperature (Tc) with increasing indium content; however, a T c value above 80 K was maintained even up to 30 vol.% addition and x = 0.4, respectively. Ba3Cu3In4O12 was detected by X-ray diffractometry and energy-dispersive X-ray spectroscopy as a reaction product for both sintered samples. The normalized Jc under a magnetic field of 0.1 T showed a maximum at x = 0.3. Indium-doped YBCO films prepared by pulsed laser deposition showed a similar dependence of T c on indium content as the sintered samples.

KW - Artificial pinning center

KW - In-doping

KW - Thin film

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