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Role of Stripes in Spin and Charge Dynamics of Underdoped La2−x Sr x CuO4

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Abstract

We investigate the electronic states of underdoped La 2−x Sr x CuO 4 (LSCO) by using a microscopic model, i.e., t-t′-t″-J model, containing charge stripes. The numerically exact diagonalization calculation is employed on small clusters. The physical properties observed in the angle-resolved photoemission and optical conductivity experiments are consistently explained in the model with vertical stripes, but not diagonal ones. These results demonstrate a crucial role of the vertical stripes in underdoped LSCO.

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Author notes

  1. Susumu Nagai

    Present address: NTT DATA corp., 2-11-17 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan

Authors and Affiliations

  1. Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan

    Takami Tohyama, Yasumasa Shibata & Sadamichi Maekawa

  2. Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan.

    Susumu Nagai

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  1. Takami Tohyama
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  2. Susumu Nagai
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  3. Yasumasa Shibata
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  4. Sadamichi Maekawa
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Tohyama, T., Nagai, S., Shibata, Y. et al. Role of Stripes in Spin and Charge Dynamics of Underdoped La2−x Sr x CuO4 . Journal of Low Temperature Physics 117, 211–215 (1999). https://doi.org/10.1023/A:1022568221866

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  • DOI: https://doi.org/10.1023/A:1022568221866

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