New process with the promise of high Jc in oxide superconductors

Masato Murakami, Mitsuru Morita, Kenji Doi, Katsuyoshi Miyamoto

Research output: Contribution to journalArticle

665 Citations (Scopus)

Abstract

We report a new process which promises high critical current density in oxide superconductors. The process consists of three stages. Firstly a YBa2Cu3Ox sample is rapidly heated and quenched from the Y2O3 plus liquid region. Subsequently the quenched sample is reheated to the Y2BaCuO2 plus liquid region, and then slowly cooled with a temperature gradient in flowing oxygen. The process enables us to grow a superconducting phase unidirectionally and to suppress the second phase intrusion, leading to the production of well textured YBa2Cu3Ox which yields a high Jc value in the presence of magnetic fields. It is also found that Bean's critical state is realized in such high Jc samples.

Original languageEnglish
Pages (from-to)1189-1194
Number of pages6
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume28
Issue number7
Publication statusPublished - 1989 Jul
Externally publishedYes

Fingerprint

Oxide superconductors
Critical current density (superconductivity)
oxides
Liquids
Thermal gradients
Magnetic fields
liquids
intrusion
Oxygen
critical current
temperature gradients
current density
oxygen
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

New process with the promise of high Jc in oxide superconductors. / Murakami, Masato; Morita, Mitsuru; Doi, Kenji; Miyamoto, Katsuyoshi.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 28, No. 7, 07.1989, p. 1189-1194.

Research output: Contribution to journalArticle

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