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Nuclear Spin–Lattice Relaxation of Single Crystal Sr14Cu24O41

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Abstract

Nuclear spin–lattice relaxation rate T 1 −1 has been measured for the ladder sites of two single crystals Sr14Cu24O41 (Sr14-A,B) by 63Cu NMR/NQR. The hole localization around 100 K appears as a peak in the T variation of T 1 −1(NQR). On the other hand, it is suppressed in the T 1 −1 (NMR) data under the magnetic field H ∼ 11 T, and a new peak appears around 20 K. T 1 −1(NMR) around the peak is more enlarged for Sr14-B than for Sr14-A. Hence, holes on the ladders of Sr14-B tend to be more localized. This is considered to be an origin for the occurrence of the magnetic order in Sr14-B under H ∼ 11 T.

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Authors and Affiliations

  1. Department of Electrical Engineering and Electronics, College of Industrial Technology, Nishikoya 1-27-1, Amagasaki, Hyogo, 661-0047, Japan

    S. Ohsugi

  2. Tsukuba Magnet Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, 305-0003, Japan

    S. Matsumoto

  3. Department of Physical Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan

    Y. Kitaoka

  4. Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki, 319-1195, Japan

    M. Matsuda

  5. Department of Physics, Aoyama-Gakuin University, Chitosedai, Setagaya-ku, Tokyo, 157-0071, Japan

    M. Uehara & J. Akimitsu

  6. Department of Physics, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan

    T. Nagata

Authors
  1. S. Ohsugi
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  2. S. Matsumoto
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  3. Y. Kitaoka
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  4. M. Matsuda
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  5. M. Uehara
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  6. T. Nagata
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  7. J. Akimitsu
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Correspondence to S. Ohsugi.

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Ohsugi, S., Matsumoto, S., Kitaoka, Y. et al. Nuclear Spin–Lattice Relaxation of Single Crystal Sr14Cu24O41 . Hyperfine Interact 159, 9–14 (2004). https://doi.org/10.1007/s10751-005-9074-7

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  • DOI: https://doi.org/10.1007/s10751-005-9074-7

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