63Cu NMR study on Nd1.85Ce0.15CuO4+δ

K. Miyagawa, H. Kawamura, K. Kanoda, Y. Onose, Y. Taguchi, Y. Tokura

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

The title material is known as an electron-doped high-TC superconductor, while the as-grown sample is a semiconductor. The 63Cu NMR studies for the as-grown and reduced Nd1.85Ce0.15CuO4+δ single crystals were performed. The NMR spectra of both the samples show small and continuous distribution of νQ, which has nothing to do with the appearance/disappearance of superconductivity but may be structural in origin. Both crystals exhibit single-peaked central lines with different line width showing the single phase nature and no contamination of the other phase. The NMR signal of the as-grown sample disappears around 150 K due to the magnetic ordering. On the other hand, the line width of the reduced sample is narrower than that of the as-grown sample and shows weak temperature dependence. These behaviors indicate that the antiferromagnetic short range order is depressed when the sample is reduced.

本文言語English
ページ(範囲)253-254
ページ数2
ジャーナルPhysica C: Superconductivity and its applications
388-389
DOI
出版ステータスPublished - 2003 5月
外部発表はい
イベントproceedings of the 23rd international conference on low temper - Hiroshima, Japan
継続期間: 2002 8月 202002 8月 27

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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