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    題名: Inverse order-disorder transition of charge stripes
    作者: Shu-Han Lee;Yen-Chung Lai;Chao-Hung Du;Alexander F. Siegenfeld;Ying-Jer Kao;Peter D. Hatton;D. Prabhakaran;Yixi Su;Di-Jing Huang
    日期: 2015-11-15
    上傳時間: 2017-01-17 02:10:30 (UTC+8)
    出版者: American Physical Society
    摘要: We report an unusual transition behavior of charge stripes in La1.67Sr0.33NiO4 using x-ray scattering. The segregated holes in La1.67Sr0.33NiO4 are observed to form anisotropic stripes in the a×b plane of the crystal space below the transition temperature T≃238 K, and at the same time, display an unusual inverse order-disorder transition along the c axis. Using a phenomenological Landau theory, we show that this inverse transition is due to the interlayer coupling between the charge and spin orders. This discovery points to the importance of the interlayer correlations in the strongly correlated electrons system.
    關聯: Physical Review B 92(20), 205114(7pages)
    DOI: 10.1103/PhysRevB.92.205114
    顯示於類別:[物理學系暨研究所] 期刊論文

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