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Anomalous structure and phonon dynamics in La1.85Sr0.15CuO4

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Abstract

We performed X-ray diffraction and neutron scattering experiments on high quality single crystals of La1.85Sr0.15CuO4. We found a forbidden (1,0,0) peak, which develops below the HTT-LTO structural transition temperature, and an anomalous behavior of acoustic phonon at (2,2,0). These results indicate that the structural anomaly has a strong relation with an superconductivity.

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Authors and Affiliations

  1. Department of Physics, Kobe University, Rokkodai Nada, 657, Kobe, Japan

    Toshio Arakawa, Masatoshi Arai, Tatsuo Nishijima, Masaki Fujita, Yoichi Murakami, Hajime Kawada, Kazuyoshi Yamada, Chul-Ho Lee & Yasuo Endoh

  2. National Laboratory for High Energy Physics, Oho, 305, Tsukuba, Japan

    Masatoshi Arai, Tatsuo Nishijima, Yoichi Murakami & Hajime Kawada

  3. Department of Physics, Tohoku University, Aramaki, Aoba, 980, Sendai, Japan

    Kazuyoshi Yamada, Chul-Ho Lee & Yasuo Endoh

Authors
  1. Toshio Arakawa
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  2. Masatoshi Arai
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  3. Tatsuo Nishijima
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  4. Masaki Fujita
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  5. Yoichi Murakami
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  6. Hajime Kawada
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  7. Kazuyoshi Yamada
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  8. Chul-Ho Lee
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  9. Yasuo Endoh
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Arakawa, T., Arai, M., Nishijima, T. et al. Anomalous structure and phonon dynamics in La1.85Sr0.15CuO4 . J Low Temp Phys 105, 819–824 (1996). https://doi.org/10.1007/BF00768484

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  • DOI: https://doi.org/10.1007/BF00768484

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