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arXiv:2208.10983 · International Conference on Low Temperature Physics (LT)

Translational Symmetry Broken Magnetization Plateau of the \(S = 2\) Antiferromagnetic Chain with Anisotropies

Takaharu Yamada, Ryosuke Nakanishi, Rito Furuchi, Hiroki Nakano, Hirono Kaneyasu, Kiyomi Okamoto, Takashi Tonegawa, Tôru Sakai

Published May 22, 2023• 2 citations
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Abstract

The magnetization plateau of the S = 2 antiferromagnetic chain with interaction and singleion anisotropies is investigated using the numerical diagonalization of finite-size clusters and some size scaling analyses.The previous level spectroscopy analysis indicated that two different magnetization plateau phases appear at half of the saturation magnetization.One is due to the large-D mechanism and the other is due to the Haldane one.In the present study the phase diagram is extended to wider region of the anisotropies.As a result we find another half magnetization plateau phase, where the translational symmetry is spontaneously broken .

DOI
10.7566/jpscp.38.011163

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