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arXiv · 2505.02113

Translational-Symmetry-Broken Magnetization Plateaux of the $S=3/2$ Anisotropic Antiferromagnetic Chain

Tomohide Kawatsu·Haruto Suzuki·Masaru Hashimoto·Koki Doi·Tomoki Houda·Rito Furuchi·Hiroki Nakano·Kiyomi Okamoto·Tôru Sakai
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Abstract

The magnetization process of the $S=3/2$ quantum spin chain with the $XXZ$ anisotropy and the single-ion anisotropy $D$ is investigated using the numerical diagonalization of finite-size clusters and the level spectroscopy analysis. We obtain the phase diagrams at 1/3 and 2/3 of the saturation magnetization to find that the translational-symmetry-broken magnetization plateau appears for the first time. The similarity and the difference between the phase diagrams of the present model and the related models are discussed by use of the discrete parameters of the models. In addition several typical magnetization curves are presented.

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Tomohide Kawatsu, Haruto Suzuki, Masaru Hashimoto, Koki Doi, Tomoki Houda, Rito Furuchi, Hiroki Nakano, Kiyomi Okamoto, Tôru Sakai. 2025-05-04. Translational-Symmetry-Broken Magnetization Plateaux of the $S=3/2$ Anisotropic Antiferromagnetic Chain. https://doi.org/10.7566/jpsj.94.064701

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