Improvement in Superconducting Properties of Air Processed SmBa 2 Cu 3 O y with Ag 2 O Addition

Y. Hashimoto, Muralidhar Miryala, N. Koshizuka, Kazuo Inoue, Masato Murakami

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

We have investigated the influence of combined additions of Ag 2 O and BaO 2 with the aim of producing good- quality single-grain SmBa 2 Cu 3 O y "Sm-123" material in air, and have characterized its superconducting performance with a SQUID magnetometer. The quality of the Sm-123 material was improved with increasing the Ag 2 O content from 0 wt% to 20 wt%. Magnetization measurements indicated that the T c (onset) increases with Ag 2 O concentration i.e. from 86 K to 92 K for Ag 2 O addition of 10 wt% to 20 wt%. At 77 K, the critical current density of 10 kA/cm 2 was achieved at 0 T (self-field). These results indicate that high-performance bulk Sm-123 materials can be fabricated even in air when optimum quantity of BaO 2 and silver is added.

Original languageEnglish
Pages (from-to)66-69
Number of pages4
JournalPhysics Procedia
Volume58
DOIs
Publication statusPublished - 2013 Jan 1
Event26th International Symposium on Superconductivity, ISS 2013 - Tokyo, Japan
Duration: 2013 Nov 182013 Nov 20

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air
magnetometers
critical current
silver
current density
magnetization

Keywords

  • Ag O
  • air process
  • BaO
  • critical current density (J )
  • SmBa Cu O

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Improvement in Superconducting Properties of Air Processed SmBa 2 Cu 3 O y with Ag 2 O Addition . / Hashimoto, Y.; Miryala, Muralidhar; Koshizuka, N.; Inoue, Kazuo; Murakami, Masato.

In: Physics Procedia, Vol. 58, 01.01.2013, p. 66-69.

Research output: Contribution to journalConference article

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AU - Hashimoto, Y.

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AU - Inoue, Kazuo

AU - Murakami, Masato

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N2 - We have investigated the influence of combined additions of Ag 2 O and BaO 2 with the aim of producing good- quality single-grain SmBa 2 Cu 3 O y "Sm-123" material in air, and have characterized its superconducting performance with a SQUID magnetometer. The quality of the Sm-123 material was improved with increasing the Ag 2 O content from 0 wt% to 20 wt%. Magnetization measurements indicated that the T c (onset) increases with Ag 2 O concentration i.e. from 86 K to 92 K for Ag 2 O addition of 10 wt% to 20 wt%. At 77 K, the critical current density of 10 kA/cm 2 was achieved at 0 T (self-field). These results indicate that high-performance bulk Sm-123 materials can be fabricated even in air when optimum quantity of BaO 2 and silver is added.

AB - We have investigated the influence of combined additions of Ag 2 O and BaO 2 with the aim of producing good- quality single-grain SmBa 2 Cu 3 O y "Sm-123" material in air, and have characterized its superconducting performance with a SQUID magnetometer. The quality of the Sm-123 material was improved with increasing the Ag 2 O content from 0 wt% to 20 wt%. Magnetization measurements indicated that the T c (onset) increases with Ag 2 O concentration i.e. from 86 K to 92 K for Ag 2 O addition of 10 wt% to 20 wt%. At 77 K, the critical current density of 10 kA/cm 2 was achieved at 0 T (self-field). These results indicate that high-performance bulk Sm-123 materials can be fabricated even in air when optimum quantity of BaO 2 and silver is added.

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