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Experimental Observation of the 1/3 Magnetization Plateau in the Diamond-Chain Compound Cu3(CO3)2(OH)2

作     者:H. Kikuchi Y. Fujii M. Chiba S. Mitsudo T. Idehara T. Tonegawa K. Okamoto T. Sakai T. Kuwai H. Ohta 

作者机构:Department of Applied Physics University of Fukui Fukui 910-8507 Japan Research Center for Development of Far-Infrared Region University of Fukui Fukui 910-8507 Japan Department of Mechanical Engineering Fukui University of Technology Fukui 910-8505 Japan Department of Physics Tokyo Institute of Technology Tokyo 152-8551 Japan Department of Physics Tohoku University Sendai 980-8578 Japan Faculty of Science Toyama University Toyama 930-8555 Japan Molecular Photoscience Research Center Kobe University Kobe 657-8501 Japan 

出 版 物:《Physical Review Letters》 (Phys Rev Lett)

年 卷 期:2005年第94卷第22期

页      面:227201-227201页

核心收录:

学科分类:07[理学] 0702[理学-物理学] 

主  题:Magnetization 

摘      要:The magnetic susceptibility, high field magnetization, and specific heat measurements of Cu3(CO3)2(OH)2, which is a model substance for the frustrating diamond spin chain model, have been performed using single crystals. Two broad peaks are observed at around 20 and 5 K in both magnetic susceptibility and specific heat results. The magnetization curve has a clear plateau at one third of the saturation magnetization. The experimental results are examined in terms of theoretical expectations based on exact diagonalization and density matrix renormalization group methods. An origin of magnetic anisotropy is also discussed.

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