Very high values of Jc obtained in NdBa2Cu3Ox by use of the U/n process

Roy Weinstein, Ravi Persad Sawh, Drew Parks, Masato Murakami, Tadashi Mochida, Noriko Chikumoto, Gernot Krabbes, Wolfgang Bieger

研究成果: Article査読

13 被引用数 (Scopus)

抄録

The U/n process has been used to introduce quasi-columnar pinning centers into Nd123, textured in 1% O2, 99% Ar. The process involves adding 235U to precursor powders of the superconductor, texturing, and irradiating with thermal neutrons. The two resulting ions, from each nuclear fission, cause aligned discontinuous electronic damage of length ∼5.4 μm, which acts as a pinning center. Best results for Jc require U deposits spaced by s ≤ 5.4 μm. This has been achieved by deposits containing two foreign elements, U and Zr, and three native elements. The deposits of UZrNdBaO and Nd422 refined by the Zr, act as additional non-aligned pinning centers. The U/n process increases Jc by a factor RJ ≥ 10, to values of Jc ∼ 274 kA/cm2 at T = 77 K, B = 666 G.

本文言語English
ページ(範囲)214-222
ページ数9
ジャーナルPhysica C: Superconductivity and its applications
383
3
DOI
出版ステータスPublished - 2002 12 15
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

フィンガープリント

「Very high values of J<sub>c</sub> obtained in NdBa<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub> by use of the U/n process」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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