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

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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.

Original languageEnglish
Pages (from-to)1198-1200
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume470
Issue number20
DOIs
Publication statusPublished - 2010 Nov 1

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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

Cite this

Kita, R., Nakamura, S., Sakimoto, K., Nakamura, T., Miura, O., Matsumoto, K., Mele, P., Yamada, K., Kaneko, K., & Ichinose, A. (2010). Effects of indium doping on the superconducting properties of YBa 2Cu3Oy sintered compounds and thin films. Physica C: Superconductivity and its applications, 470(20), 1198-1200. https://doi.org/10.1016/j.physc.2010.05.073