Study of flux dynamics in NdBCO single crystal before and after heavy ions irradiation

Monica Zamboni, Noriko Chikumoto, Takato Machi, Naoki Koshizuka, Marcin Konczykowski, Masato Murakami

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The magnetic properties in NdBCO single crystal fabricated by flux growing method in controlled oxygen atmosphere have been investigated using both SQUID magnetometer and magneto-optical (M-O) technique before and after heavy ions irradiation. An external magnetic field was applied parallel to the sample c-axis up to 7 T at different temperatures. Critical current densities were obtained using the extended Bean model from the hysteresis loops as measured by SQUID. The M-O images were collected using a special facility equipped with a superconductor magnet able to reach 8 T. The indicator film was produced in ISTEC. The M-O images were associated to the data obtained by analysing the magnetization curves. It was found that the irradiation strongly affects the magnetic behaviour. The direct and detailed visualization of the field behaviour provided by magneto optical images allows a more precise understanding of the magnetization loops.

本文言語English
ページ(範囲)309-312
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
354
1-4
DOI
出版ステータスPublished - 2001 5月
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

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